EduSahara™ Assignment
Name : Linear Equation Concepts
Chapter : Linear Equations in One Variable
Grade : SSC Grade VIII
License : Non Commercial Use
Question 1
1.
Which of the following is a linear equation in one variable?
  • (i)
    (
    36
    x
    2
     
    +
    66
    x
    y
    36
    x
    +
    18
    y
    2
     
    26
    y
    +
    8
    )
    =
    0
  • (ii)
    (
    9
    x
    +
    9
    y
    +
    4
    z
    4
    )
    =
    0
  • (iii)
    (
    8
    x
    3
    )
    =
    0
  • (iv)
    (
    x
    +
    9
    y
    4
    )
    =
    0
  • (v)
    (
    2
    x
    2
     
    +
    7
    x
    +
    49
    )
    =
    0
Question 2
2.
Which of the following is a linear equation in two variable?
  • (i)
    (
    5
    x
    8
    y
    +
    3
    z
    9
    )
    =
    0
  • (ii)
    (
    40
    x
    2
     
    +
    92
    x
    y
    +
    16
    x
    +
    36
    y
    2
     
    44
    y
    56
    )
    =
    0
  • (iii)
    (
    5
    x
    +
    6
    y
    +
    3
    )
    =
    0
  • (iv)
    (
    4
    x
    2
     
    +
    26
    x
    +
    36
    )
    =
    0
  • (v)
    (
    2
    x
    +
    7
    )
    =
    0
Question 3
3.
Which of the following is a linear equation in three variable?
  • (i)
    (
    5
    x
    +
    8
    )
    =
    0
  • (ii)
    (
    9
    x
    8
    y
    1
    )
    =
    0
  • (iii)
    (
    7
    x
    +
    8
    y
    8
    z
    7
    )
    =
    0
  • (iv)
    (
    63
    x
    2
     
    92
    x
    32
    )
    =
    0
  • (v)
    (
    81
    x
    2
     
    126
    x
    y
    45
    x
    48
    y
    2
     
    38
    y
    4
    )
    =
    0
Question 4
4.
Which of the following is a linear equation in one variable?
  • (i)
    (
    63
    x
    2
     
    +
    36
    x
    )
    =
    (
    5
    x
    4
    )
  • (ii)
    (
    x
    7
    y
    5
    z
    2
    )
    =
    (
    8
    x
    +
    3
    y
    3
    z
    +
    7
    )
  • (iii)
    (
    6
    x
    y
    1
    )
    =
    (
    5
    x
    6
    y
    +
    2
    )
  • (iv)
    (
    16
    x
    2
     
    20
    x
    y
    +
    54
    x
    6
    y
    2
     
    +
    31
    y
    40
    )
    =
    0
  • (v)
    (
    x
    +
    2
    )
    =
    (
    2
    x
    3
    )
Question 5
5.
Which of the following is a linear equation in two variable?
  • (i)
    (
    40
    x
    2
     
    +
    47
    x
    y
    19
    x
    12
    y
    2
     
    12
    y
    +
    72
    )
    =
    0
  • (ii)
    (
    x
    +
    8
    )
    =
    (
    5
    x
    +
    5
    )
  • (iii)
    (
    3
    x
    2
     
    15
    x
    +
    12
    )
    =
    (
    6
    x
    +
    8
    )
  • (iv)
    (
    8
    x
    +
    7
    y
    2
    z
    +
    4
    )
    =
    (
    x
    3
    y
    +
    8
    z
    +
    4
    )
  • (v)
    (
    3
    x
    6
    y
    +
    6
    )
    =
    (
    9
    x
    +
    3
    y
    +
    3
    )
Question 6
6.
Which of the following is a linear equation in three variable?
  • (i)
    (
    4
    x
    7
    y
    +
    4
    )
    =
    (
    6
    x
    4
    y
    9
    )
  • (ii)
    (
    16
    x
    2
     
    +
    4
    x
    )
    =
    (
    5
    x
    +
    5
    )
  • (iii)
    (
    18
    x
    2
     
    42
    x
    y
    +
    30
    x
    12
    y
    2
     
    20
    y
    +
    48
    )
    =
    0
  • (iv)
    (
    x
    +
    4
    y
    7
    z
    +
    4
    )
    =
    (
    5
    x
    3
    y
    +
    5
    z
    +
    2
    )
  • (v)
    (
    9
    x
    5
    )
    =
    (
    5
    x
    6
    )
Question 7
7.
    • The linear equation
    • (
      4
      x
      3
      )
      =
      (
      3
      x
      +
      1
      )
    • is equivalent to
  • (i)
    (
    4
    x
    3
    )
    =
    (
    3
    x
    1
    )
  • (ii)
    (
    4
    x
    3
    )
    =
    (
    3
    x
    +
    3
    )
  • (iii)
    (
    8
    x
    4
    )
    =
    0
  • (iv)
    (
    6
    x
    4
    )
    =
    0
  • (v)
    (
    7
    x
    4
    )
    =
    0
Question 8
8.
    • The linear equation
    • (
      4
      x
      3
      y
      5
      )
      =
      (
      8
      x
      8
      y
      +
      6
      )
    • is equivalent to
  • (i)
    (
    4
    x
    3
    y
    5
    )
    =
    (
    8
    x
    6
    y
    +
    6
    )
  • (ii)
    (
    13
    x
    +
    5
    y
    11
    )
    =
    0
  • (iii)
    (
    12
    x
    +
    5
    y
    11
    )
    =
    0
  • (iv)
    (
    11
    x
    +
    5
    y
    11
    )
    =
    0
  • (v)
    (
    4
    x
    3
    y
    5
    )
    =
    (
    8
    x
    11
    y
    +
    6
    )
Question 9
9.
    • The linear equation
    • (
      5
      x
      +
      2
      y
      +
      6
      z
      7
      )
      =
      (
      2
      x
      8
      y
      +
      8
      z
      1
      )
    • is equivalent to
  • (i)
    (
    7
    x
    +
    10
    y
    2
    z
    6
    )
    =
    0
  • (ii)
    (
    5
    x
    +
    2
    y
    +
    6
    z
    7
    )
    =
    (
    2
    x
    11
    y
    +
    8
    z
    1
    )
  • (iii)
    (
    8
    x
    +
    10
    y
    2
    z
    6
    )
    =
    0
  • (iv)
    (
    5
    x
    +
    2
    y
    +
    6
    z
    7
    )
    =
    (
    2
    x
    6
    y
    +
    8
    z
    1
    )
  • (v)
    (
    6
    x
    +
    10
    y
    2
    z
    6
    )
    =
    0
Question 10
10.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      8
      x
      6
      )
      =
      (
      5
      x
      +
      9
      )
    • is
  • (i)
    x
    =
    17

    13
  • (ii)
    x
    =
    13

    11
  • (iii)
    x
    =
    17

    15
  • (iv)
    x
    =
    15

    13
  • (v)
    x
    =
    1
Question 11
11.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      9
      x
      +
      6
      y
      7
      )
      =
      (
      x
      4
      y
      +
      8
      )
    • is
  • (i)
    x
    =
    (
    y
    5

    2
    )
  • (ii)
    x
    =
    (
    3

    2
    )
  • (iii)
    x
    =
    (
    y
    1

    2
    )
  • (iv)
    x
    =
    (
    y
    3

    2
    )
  • (v)
    x
    =
    (
    2
    y
    3

    2
    )
Question 12
12.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      8
      x
      7
      y
      +
      4
      )
      =
      (
      5
      x
      +
      3
      y
      9
      )
    • is
  • (i)
    y
    =
    (
    13

    10
    x
    +
    13

    10
    )
  • (ii)
    y
    =
    (
    5

    4
    x
    +
    13

    10
    )
  • (iii)
    y
    =
    (
    13

    10
    x
    +
    11

    10
    )
  • (iv)
    y
    =
    (
    11

    8
    x
    +
    13

    10
    )
  • (v)
    y
    =
    (
    13

    10
    x
    +
    3

    2
    )
Question 13
13.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      8
      x
      7
      y
      +
      9
      z
      +
      7
      )
      =
      (
      9
      x
      +
      9
      y
      4
      z
      5
      )
    • is
  • (i)
    x
    =
    (
    16
    y
    13
    z
    12
    )
  • (ii)
    x
    =
    (
    16
    y
    10
    z
    12
    )
  • (iii)
    x
    =
    (
    16
    y
    15
    z
    12
    )
  • (iv)
    x
    =
    (
    17
    y
    13
    z
    12
    )
  • (v)
    x
    =
    (
    15
    y
    13
    z
    12
    )
Question 14
14.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      4
      x
      +
      6
      y
      +
      5
      z
      4
      )
      =
      (
      4
      x
      +
      5
      y
      6
      z
      +
      6
      )
    • is
  • (i)
    y
    =
    (
    7
    x
    11
    z
    +
    10
    )
  • (ii)
    y
    =
    (
    9
    x
    11
    z
    +
    10
    )
  • (iii)
    y
    =
    (
    8
    x
    13
    z
    +
    10
    )
  • (iv)
    y
    =
    (
    8
    x
    9
    z
    +
    10
    )
  • (v)
    y
    =
    (
    8
    x
    11
    z
    +
    10
    )
Question 15
15.
    • The value of
    • z
    • in terms of other variables and constant in
    • (
      3
      x
      6
      y
      +
      3
      z
      +
      5
      )
      =
      (
      8
      x
      +
      6
      y
      +
      z
      7
      )
    • is
  • (i)
    z
    =
    (
    3
    x
    +
    6
    y
    6
    )
  • (ii)
    z
    =
    (
    9

    4
    x
    +
    6
    y
    6
    )
  • (iii)
    z
    =
    (
    5

    2
    x
    +
    3
    y
    6
    )
  • (iv)
    z
    =
    (
    5

    2
    x
    +
    6
    y
    6
    )
  • (v)
    z
    =
    (
    5

    2
    x
    +
    9
    y
    6
    )
Question 16
16.
Which of the following is a linear equation in one variable?
  • (i)
    (
    5
    x
    +
    y
    +
    1
    )
    =
    0
  • (ii)
    (
    6
    x
    6
    )
    =
    0
  • (iii)
    (
    8
    x
    2
     
    +
    4
    x
    )
    =
    0
  • (iv)
    (
    8
    x
    9
    y
    2
    z
    6
    )
    =
    0
  • (v)
    (
    18
    x
    2
     
    93
    x
    y
    58
    x
    54
    y
    2
     
    +
    15
    y
    +
    56
    )
    =
    0
Question 17
17.
Which of the following is a linear equation in two variable?
  • (i)
    (
    32
    x
    2
     
    +
    52
    x
    y
    +
    16
    x
    +
    21
    y
    2
     
    +
    12
    y
    )
    =
    0
  • (ii)
    (
    63
    x
    2
     
    60
    x
    27
    )
    =
    0
  • (iii)
    (
    3
    x
    5
    y
    5
    )
    =
    0
  • (iv)
    (
    9
    x
    +
    4
    )
    =
    0
  • (v)
    (
    4
    x
    +
    9
    y
    4
    z
    +
    4
    )
    =
    0
Question 18
18.
Which of the following is a linear equation in three variable?
  • (i)
    (
    16
    x
    2
     
    +
    22
    x
    +
    45
    )
    =
    0
  • (ii)
    (
    2
    x
    +
    8
    y
    +
    1
    )
    =
    0
  • (iii)
    (
    36
    x
    2
     
    +
    59
    x
    y
    29
    x
    +
    7
    y
    2
     
    +
    34
    y
    5
    )
    =
    0
  • (iv)
    (
    9
    x
    8
    y
    6
    z
    1
    )
    =
    0
  • (v)
    (
    6
    x
    8
    )
    =
    0
Question 19
19.
Which of the following is a linear equation in one variable?
  • (i)
    (
    45
    x
    2
     
    11
    x
    y
    +
    14
    x
    20
    y
    2
     
    +
    62
    y
    48
    )
    =
    0
  • (ii)
    (
    2
    x
    +
    2
    y
    3
    z
    )
    =
    (
    x
    8
    y
    9
    z
    9
    )
  • (iii)
    (
    2
    x
    +
    3
    y
    +
    6
    )
    =
    (
    3
    x
    +
    8
    y
    3
    )
  • (iv)
    (
    9
    x
    +
    7
    )
    =
    (
    9
    x
    )
  • (v)
    (
    56
    x
    2
     
    +
    135
    x
    +
    81
    )
    =
    (
    8
    x
    +
    3
    )
Question 20
20.
Which of the following is a linear equation in two variable?
  • (i)
    (
    2
    x
    +
    4
    y
    9
    )
    =
    (
    5
    x
    +
    2
    y
    8
    )
  • (ii)
    (
    3
    x
    9
    y
    +
    5
    z
    3
    )
    =
    (
    6
    x
    2
    y
    +
    8
    z
    4
    )
  • (iii)
    (
    3
    x
    +
    7
    )
    =
    8
    x
  • (iv)
    (
    8
    x
    2
     
    +
    78
    x
    54
    )
    =
    (
    9
    x
    6
    )
  • (v)
    (
    5
    x
    2
     
    +
    23
    x
    y
    +
    2
    x
    +
    10
    y
    2
     
    +
    17
    y
    +
    3
    )
    =
    0
Question 21
21.
Which of the following is a linear equation in three variable?
  • (i)
    (
    3
    x
    +
    3
    y
    +
    4
    )
    =
    (
    8
    x
    4
    y
    +
    3
    )
  • (ii)
    (
    x
    +
    6
    y
    +
    3
    z
    +
    9
    )
    =
    (
    6
    x
    +
    3
    y
    +
    9
    z
    2
    )
  • (iii)
    (
    12
    x
    2
     
    +
    44
    x
    3
    y
    2
     
    26
    y
    16
    )
    =
    0
  • (iv)
    (
    7
    x
    2
     
    +
    14
    x
    +
    7
    )
    =
    (
    9
    x
    2
    )
  • (v)
    (
    5
    x
    +
    2
    )
    =
    (
    8
    x
    +
    1
    )
Question 22
22.
    • The linear equation
    • (
      2
      x
      +
      3
      )
      =
      (
      6
      x
      +
      7
      )
    • is equivalent to
  • (i)
    (
    5
    x
    4
    )
    =
    0
  • (ii)
    (
    4
    x
    4
    )
    =
    0
  • (iii)
    (
    2
    x
    +
    3
    )
    =
    (
    6
    x
    +
    9
    )
  • (iv)
    (
    2
    x
    +
    3
    )
    =
    (
    6
    x
    +
    5
    )
  • (v)
    (
    3
    x
    4
    )
    =
    0
Question 23
23.
    • The linear equation
    • (
      4
      x
      +
      8
      y
      2
      )
      =
      (
      3
      x
      2
      y
      +
      5
      )
    • is equivalent to
  • (i)
    (
    4
    x
    +
    8
    y
    2
    )
    =
    (
    3
    x
    5
    y
    +
    5
    )
  • (ii)
    (
    10
    y
    7
    )
    =
    0
  • (iii)
    (
    2
    x
    +
    10
    y
    7
    )
    =
    0
  • (iv)
    (
    4
    x
    +
    8
    y
    2
    )
    =
    (
    3
    x
    +
    y
    +
    5
    )
  • (v)
    (
    x
    +
    10
    y
    7
    )
    =
    0
Question 24
24.
    • The linear equation
    • (
      2
      x
      +
      5
      y
      +
      5
      z
      +
      4
      )
      =
      (
      7
      x
      +
      9
      y
      6
      z
      7
      )
    • is equivalent to
  • (i)
    (
    8
    x
    4
    y
    +
    11
    z
    +
    11
    )
    =
    0
  • (ii)
    (
    10
    x
    4
    y
    +
    11
    z
    +
    11
    )
    =
    0
  • (iii)
    (
    2
    x
    +
    5
    y
    +
    5
    z
    +
    4
    )
    =
    (
    7
    x
    +
    7
    y
    6
    z
    7
    )
  • (iv)
    (
    9
    x
    4
    y
    +
    11
    z
    +
    11
    )
    =
    0
  • (v)
    (
    2
    x
    +
    5
    y
    +
    5
    z
    +
    4
    )
    =
    (
    7
    x
    +
    12
    y
    6
    z
    7
    )
Question 25
25.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      7
      x
      +
      3
      )
      =
      (
      9
      x
      8
      )
    • is
  • (i)
    x
    =
    (
    11

    18
    )
  • (ii)
    x
    =
    (
    13

    16
    )
  • (iii)
    x
    =
    (
    11

    14
    )
  • (iv)
    x
    =
    (
    9

    16
    )
  • (v)
    x
    =
    (
    11

    16
    )
Question 26
26.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      5
      x
      +
      5
      y
      +
      3
      )
      =
      (
      9
      x
      +
      4
      y
      +
      3
      )
    • is
  • (i)
    x
    =
    1

    14
    y
  • (ii)
    x
    =
    (
    1

    14
    y
    )
  • (iii)
    x
    =
    3

    14
    y
  • (iv)
    x
    =
    1

    12
    y
  • (v)
    x
    =
    1

    16
    y
Question 27
27.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      6
      x
      3
      y
      7
      )
      =
      (
      8
      x
      +
      9
      y
      +
      9
      )
    • is
  • (i)
    y
    =
    (
    9

    8
    x
    4

    3
    )
  • (ii)
    y
    =
    (
    7

    6
    x
    2
    )
  • (iii)
    y
    =
    (
    5

    4
    x
    4

    3
    )
  • (iv)
    y
    =
    (
    7

    6
    x
    2

    3
    )
  • (v)
    y
    =
    (
    7

    6
    x
    4

    3
    )
Question 28
28.
    • The value of
    • x
    • in terms of other variables and constant in
    • (
      4
      x
      3
      y
      +
      3
      z
      2
      )
      =
      (
      8
      x
      2
      y
      z
      +
      1
      )
    • is
  • (i)
    x
    =
    (
    1

    4
    y
    +
    3
    z
    3

    4
    )
  • (ii)
    x
    =
    (
    1

    2
    y
    +
    z
    3

    4
    )
  • (iii)
    x
    =
    (
    1

    4
    y
    z
    3

    4
    )
  • (iv)
    x
    =
    (
    1

    4
    y
    +
    z
    3

    4
    )
  • (v)
    x
    =
    (
    1

    6
    y
    +
    z
    3

    4
    )
Question 29
29.
    • The value of
    • y
    • in terms of other variables and constant in
    • (
      6
      x
      3
      y
      4
      z
      9
      )
      =
      (
      5
      x
      +
      y
      +
      8
      z
      +
      1
      )
    • is
  • (i)
    y
    =
    (
    7

    2
    x
    3
    z
    5

    2
    )
  • (ii)
    y
    =
    (
    11

    4
    x
    5
    z
    5

    2
    )
  • (iii)
    y
    =
    (
    5

    2
    x
    3
    z
    5

    2
    )
  • (iv)
    y
    =
    (
    11

    4
    x
    z
    5

    2
    )
  • (v)
    y
    =
    (
    11

    4
    x
    3
    z
    5

    2
    )
Question 30
30.
    • The value of
    • z
    • in terms of other variables and constant in
    • (
      9
      x
      4
      y
      +
      6
      z
      +
      4
      )
      =
      (
      2
      x
      y
      +
      8
      z
      )
    • is
  • (i)
    z
    =
    (
    7

    2
    x
    3

    2
    y
    +
    2
    )
  • (ii)
    z
    =
    (
    4
    x
    3

    2
    y
    +
    2
    )
  • (iii)
    z
    =
    (
    7

    2
    x
    5

    2
    y
    +
    2
    )
  • (iv)
    z
    =
    (
    7

    2
    x
    1

    2
    y
    +
    2
    )
  • (v)
    z
    =
    (
    13

    4
    x
    3

    2
    y
    +
    2
    )
    Assignment Key

  •  1) (iii)
  •  2) (iii)
  •  3) (iii)
  •  4) (v)
  •  5) (v)
  •  6) (iv)
  •  7) (v)
  •  8) (iii)
  •  9) (i)
  •  10) (iv)
  •  11) (iv)
  •  12) (i)
  •  13) (i)
  •  14) (v)
  •  15) (iv)
  •  16) (ii)
  •  17) (iii)
  •  18) (iv)
  •  19) (iv)
  •  20) (i)
  •  21) (ii)
  •  22) (ii)
  •  23) (v)
  •  24) (iv)
  •  25) (v)
  •  26) (i)
  •  27) (v)
  •  28) (iv)
  •  29) (v)
  •  30) (i)