EduSahara™ Assignment
Name : Simultaneous Equations
Chapter : Linear Equations and Simultaneous Linear Equations
Grade : ICSE Grade IX
License : Non Commercial Use
Question 1
1.
    • Solve
    • (
      9
      x
      3
      y
      81
      )
      =
      0
      (
      7
      x
      11
      y
      63
      )
      =
      0
  • (i)
    (
    -7
    ,
    0
    )
  • (ii)
    (
    -9
    ,
    0
    )
  • (iii)
    (
    -8
    ,
    0
    )
  • (iv)
    (
    -9
    ,
    -2
    )
  • (v)
    (
    -9
    ,
    -1
    )
Question 2
2.
    • Solve
    • (
      2
      x
      2
      y
      3
      )
      =
      0
      (
      x
      +
      4
      y
      2
      )
      =
      0
  • (i)
    (
    -2
    ,
    5

    4
    )
  • (ii)
    (
    (
    -12

    5
    )
    ,
    5

    4
    )
  • (iii)
    (
    -2
    ,
    5

    6
    )
  • (iv)
    (
    (
    -12

    5
    )
    ,
    7

    6
    )
  • (v)
    (
    (
    -8

    3
    )
    ,
    7

    6
    )
Question 3
3.
    • Solve
    • (
      3
      x
      +
      2
      y
      3
      )
      =
      (
      2
      )
      (
      3
      x
      +
      5
      y
      5
      )
      =
      3
  • (i)
    (
    -1
    ,
    3
    )
  • (ii)
    (
    -1
    ,
    5

    3
    )
  • (iii)
    (
    (
    -13

    11
    )
    ,
    3
    )
  • (iv)
    (
    (
    -11

    9
    )
    ,
    7

    3
    )
  • (v)
    (
    (
    -13

    11
    )
    ,
    7

    3
    )
Question 4
4.
    • Solve
    • (
      5
      x
      +
      4
      y
      +
      5
      )
      =
      (
      x
      +
      2
      y
      4
      )
      (
      2
      x
      +
      3
      y
      4
      )
      =
      (
      5
      x
      +
      y
      2
      )
  • (i)
    (
    17

    5
    ,
    (
    -71

    6
    )
    )
  • (ii)
    (
    13

    3
    ,
    (
    -73

    6
    )
    )
  • (iii)
    (
    17

    5
    ,
    (
    -49

    4
    )
    )
  • (iv)
    (
    11

    3
    ,
    (
    -71

    6
    )
    )
  • (v)
    (
    13

    3
    ,
    (
    -49

    4
    )
    )
Question 5
5.
    • Solve the following pair of equations :
    •  
       
      6

       
       
      x
        +  
       
       
      7

       
       
      y
      =
       
       
      (
      34
      )
    •    
       
       
      2

       
       
      x
         
       
       
      3

       
       
      y
      =
       
       
      14
  • (i)
    (
    1

    -1
    ,
    (
    -1

    4
    )
    )
  • (ii)
    (
    0
    ,
    (
    -1

    4
    )
    )
  • (iii)
    (
    1
    ,
    (
    -1

    4
    )
    )
  • (iv)
    (
    1

    -1
    ,
    (
    -1

    6
    )
    )
  • (v)
    (
    1

    -1
    ,
    1

    4
    )
Question 6
6.
    • Solve the following pair of equations :
    •    
       
       
      2
      x
         
       
       
      6

       
       
      y
      =
       
       
      6
    •  
       
      7
      x
         
       
       
      15

       
       
      y
      =
       
       
      (
      93
      )
  • (i)
    (
    -9
    ,
    1

    2
    )
  • (ii)
    (
    -9
    ,
    (
    -1

    2
    )
    )
  • (iii)
    (
    -7
    ,
    1

    2
    )
  • (iv)
    (
    -9
    ,
    1
    )
  • (v)
    (
    -8
    ,
    1

    2
    )
Question 7
7.
    • Solve the following pair of equations :
    •  
       
      16

       
       
      x
        +  
       
       
      2
      y
      =
       
       
      34
    •  
       
      2

       
       
      x
        +  
       
       
      7
      y
      =
       
       
      (
      43
      )
  • (i)
    (
    1
    ,
    -7
    )
  • (ii)
    (
    1

    3
    ,
    -9
    )
  • (iii)
    (
    1

    5
    ,
    -7
    )
  • (iv)
    (
    1

    3
    ,
    -8
    )
  • (v)
    (
    1

    3
    ,
    -7
    )
Question 8
8.
    • Solve the following pair of equations :
    •  
       
      7

       
       
      (
      x
      +
      y
      )
         
       
       
      5

       
       
      (
      x
      y
      )
      =
       
       
      (
      1
      )
    •  
       
      9

       
       
      (
      x
      +
      y
      )
         
       
       
      3

       
       
      (
      x
      y
      )
      =
       
       
      (
      15
      )
  • (i)
    (
    (
    -7

    24
    )
    ,
    (
    -1

    8
    )
    )
  • (ii)
    (
    (
    -7

    26
    )
    ,
    (
    -1

    24
    )
    )
  • (iii)
    (
    (
    -5

    24
    )
    ,
    (
    -1

    24
    )
    )
  • (iv)
    (
    (
    -7

    24
    )
    ,
    (
    -1

    24
    )
    )
  • (v)
    (
    (
    -7

    24
    )
    ,
    (
    -1

    22
    )
    )
Question 9
9.
    • Solve the following pair of equations :
    •  
       
      6

       
       
      (
      3
      x
      +
      y
      )
         
       
       
      4

       
       
      (
      3
      x
      y
      )
      =
       
       
      (
      14
      )
    •  
       
      14

       
       
      (
      3
      x
      +
      y
      )
         
       
       
      12

       
       
      (
      3
      x
      y
      )
      =
       
       
      (
      14
      )
  • (i)
    (
    1

    21
    ,
    0
    )
  • (ii)
    (
    (
    -1

    21
    )
    ,
    -3
    )
  • (iii)
    (
    (
    -1

    21
    )
    ,
    0
    )
  • (iv)
    (
    (
    -1

    21
    )
    ,
    -1
    )
  • (v)
    (
    (
    -1

    23
    )
    ,
    0
    )
Question 10
10.
    • Solve the following pair of equations :
    •    
       
       
      6

       
       
      x
         
       
       
      10

       
       
      (
      y
      2
      )
      =
       
       
      66
    •  
       
      6

       
       
      x
        +  
       
       
      1

       
       
      (
      y
      2
      )
      =
       
       
      (
      39
      )
  • (i)
    (
    1
    ,
    5

    3
    )
  • (ii)
    (
    2
    ,
    5

    3
    )
  • (iii)
    (
    (
    -1

    6
    )
    ,
    5

    3
    )
  • (iv)
    (
    (
    -1

    6
    )
    ,
    -2
    )
  • (v)
    (
    (
    -1

    6
    )
    ,
    -1
    )
Question 11
11.
    • Solve the following pair of equations :
    • (
      6
      x
      6
      y
      )
      =
      12
      x
      y
    • (
      15
      x
      13
      y
      )
      =
      14
      x
      y
  • (i)
    (
    (
    -1

    6
    )
    ,
    1

    6
    )
  • (ii)
    (
    (
    -1

    8
    )
    ,
    (
    -1

    6
    )
    )
  • (iii)
    (
    (
    -1

    8
    )
    ,
    1

    4
    )
  • (iv)
    (
    (
    -1

    8
    )
    ,
    1

    6
    )
  • (v)
    (
    (
    -3

    8
    )
    ,
    1

    6
    )
Question 12
12.
    • Solve the following pair of equations :
    • (
      5
      x
      7
      y
      )

      x
      y
      =
      27
    • (
      4
      x
      5
      y
      )

      x
      y
      =
      18
  • (i)
    (
    (
    -1

    6
    )
    ,
    (
    -1

    3
    )
    )
  • (ii)
    (
    (
    -1

    4
    )
    ,
    1

    3
    )
  • (iii)
    (
    (
    -1

    2
    )
    ,
    1

    3
    )
  • (iv)
    (
    (
    -1

    6
    )
    ,
    1
    )
  • (v)
    (
    (
    -1

    6
    )
    ,
    1

    3
    )
Question 13
13.
    • Solve the following pair of equations :
    •    
       
       
      4

       
       

      x
        +  
       
       
      16

       
       

      y
      =
      68
    •    
       
       
      6

       
       

      x
        +  
       
       
      2

       
       

      y
      =
      -30
  • (i)
    (
    1

    49
    ,
    (
    -1

    36
    )
    )
  • (ii)
    (
    1

    49
    ,
    1

    36
    )
  • (iii)
    (
    3

    49
    ,
    1

    36
    )
  • (iv)
    (
    1

    51
    ,
    1

    36
    )
  • (v)
    (
    1

    49
    ,
    1

    34
    )
    Assignment Key

  •  1) (ii)
  •  2) (v)
  •  3) (iv)
  •  4) (iv)
  •  5) (i)
  •  6) (i)
  •  7) (v)
  •  8) (iv)
  •  9) (iii)
  •  10) (iii)
  •  11) (iv)
  •  12) (v)
  •  13) (ii)