ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Linear Equations
Question 1
1.
    • Which of the following equations is not the same as
    • (
      −
      x
      +
      1
      		)
      =
      (
      −
      4
      x
      +
      7
      		)
  • (
    −
    x
    		)
    =
    (
    −
    4
    x
    +
    6
    		)
  • (
    −
    x
    −
    2
    		)
    =
    (
    −
    4
    x
    +
    4
    		)
  • (
    −
    x
    +
    2
    		)
    =
    (
    −
    4
    x
    +
    8
    		)
  • (
    −
    x
    +
    4
    		)
    =
    (
    −
    4
    x
    +
    10
    		)
  • (
    −
    x
    −
    3
    		)
    =
    (
    −
    4
    x
    +
    11
    		)
Question 2
2.
Which of the following is a linear equation in three variable?
  • (
    9
    x
    2
     
    −
    6
    x
    −
    15
    		)
    =
    0
  • (
    −
    18
    x
    2
     
    −
    39
    x
    y
    +
    3
    x
    −
    18
    y
    2
     
    −
    3
    y
    +
    3
    		)
    =
    0
  • (
    −
    5
    x
    −
    8
    y
    +
    z
    +
    3
    		)
    =
    0
  • (
    3
    x
    +
    9
    		)
    =
    0
  • (
    −
    6
    x
    −
    4
    y
    +
    9
    		)
    =
    0
Question 3
3.
    • The additive inverse of the expression
    • 2
    • is
  • (
    −
    4
    		)
  • (
    −
    2
    		)
  • 2
  • (
    −
    3
    		)
  • 1
Question 4
4.
    • Solve the equation
    • (
      9
      4
      x
      +
      5
      3
      		)
      =
      (
      7
      3
      x
      +
      6
      5
      		)
  • 28
    5
  • 6
  • 26
    5
  • 38
    7
Question 5
5.
    • Solve :
    •  
       
      (
      x
      −
      2
      		)
       
       
      4
      		  +  
       
       
      (
      −
      x
      +
      5
      		)
       
       
      2
      =
       
       
      (
      −
      x
      −
      5
      		)
  • (
    -28
    3
    		 )
  • -10
  • (
    -46
    5
    		 )
  • (
    -26
    3
    		 )
Question 6
6.
    • Solve :
    •  
       
      (
      3
      x
      +
      1
      		)
       
       
      5
      		  +  
       
       
      2
      x
       
       
      10
      =
       
       
      (
      5
      x
      +
      5
      		)
  • (
    -6
    7
    		 )
  • (
    -6
    5
    		 )
  • (
    -8
    7
    		 )
  • (
    -10
    9
    		 )
  • (
    -10
    7
    		 )
Question 7
7.
    • Which of the following equations is not the same as
    • (
      x
      +
      4
      		)
      =
      (
      −
      1
      		)
  • (
    6
    x
    −
    3
    		)
    =
    (
    5
    x
    −
    8
    		)
  • (
    −
    4
    x
    +
    11
    		)
    =
    (
    −
    5
    x
    +
    6
    		)
  • (
    −
    8
    x
    −
    1
    		)
    =
    (
    −
    9
    x
    −
    6
    		)
  • (
    10
    x
    +
    9
    		)
    =
    (
    9
    x
    +
    4
    		)
  • (
    6
    x
    −
    3
    		)
    =
    (
    −
    5
    x
    +
    6
    		)
Question 8
8.
Which of the following is a linear equation in one variable?
  • (
    −
    7
    x
    −
    7
    y
    −
    8
    z
    −
    8
    		)
    =
    (
    −
    4
    x
    +
    2
    y
    +
    2
    z
    +
    1
    		)
  • (
    9
    x
    −
    4
    y
    −
    2
    		)
    =
    (
    8
    x
    +
    2
    y
    −
    5
    		)
  • (
    −
    5
    x
    −
    4
    		)
    =
    (
    6
    x
    +
    8
    		)
  • (
    −
    14
    x
    2
     
    +
    16
    x
    −
    2
    		)
    =
    x
  • (
    −
    48
    x
    2
     
    +
    58
    x
    y
    −
    15
    y
    2
     
    +
    11
    y
    +
    12
    		)
    =
    0
Question 9
9.
    • Which of the following equations is the same as
    • (
      x
      +
      8
      		)
      =
      0
  • 2
    x
    =
    (
    −
    x
    +
    8
    		)
  • 16
    =
    (
    x
    −
    8
    		)
  • (
    8
    x
    +
    12
    		)
    =
    (
    7
    x
    +
    4
    		)
  • (
    8
    x
    +
    12
    		)
    =
    (
    −
    7
    x
    −
    4
    		)
  • (
    −
    6
    x
    +
    4
    		)
    =
    (
    7
    x
    +
    4
    		)
Question 10
10.
    • Which of the following equations is the same as
    • (
      2
      x
      +
      1
      		)
      =
      0
  • (
    2
    x
    +
    3
    		)
    =
    3
  • (
    2
    x
    +
    3
    		)
    =
    2
  • (
    2
    x
    +
    6
    		)
    =
    2
  • 2
    x
    =
    2
  • (
    2
    x
    +
    3
    		)
    =
    1