[sec 4 calc prac] Solve Simultaneous Equations

Solve the simultaneous equations.

x + 3y = 7

x + 2y = 5

• x = - 1

  y = - 2

• x = 1

  y = - 2

• x = - 1

  y = 2

• x = 1

  y = 2

Solve the simultaneous equations.

2x + 3y = 12

x + 3y = 9

• x = -3

  y = -2

• x = 3

  y = 2

• x = -3

  y = 2

• x = 3

  y = -2

Solve the simultaneous equations below.

2x + 4y = 22

x + 4y = 13

• x = -9

  y = 1

• x = -9

  y = -1

• x = 9

  y = 1

• x = 9

  y = -1

Solve the simultaneous equations.

4x + y = 13

3x + y = 10

• x = 3 

  y = 1

• x = -3 

  y = 1

• x = 3 

  y = -1

    

• x = -3 

  y = -1

Solve the simultaneous equations below.

x + 8y = 14

x + y = 7

• x = -6

  y = -1

• x = 6

  y = 1

• x = -6

  y = 1

• x = 6

  y = -1

Solve the simultaneous equations.

7x − 2y = 3

x − 2y = −3

• x = -1

  y = -2

• x = 1

  y = -2

• x = -1

  y = 2

• x = 1

  y = 2

Solve the simultaneous equations.

5a − 3b = 3

a + 3b = 15

• a = -3

  b = -4

• a = 3

  b = -4

• a = -3

  b = 4

• a = 3

  b = 4

Solve the simultaneous equations.

6y − 5x = 22

y + 5x = 27

• x = -4

  y = 7

• x = 4

  y = 7

• x = 2

  y = 3

• x = 2

  y = -3

Solve the simultaneous equations.

11r + 2s = −13

−11r − 3s = 3

• r = -3 

  s = 10

• r = 3 

  s = 10

• r = 2 

  s = 8

• x = 2

  y = -8

Solve the simultaneous equations by elimination.

9m − 4n = −18

12m + 4n = −24

• m = -2

    n = 0

• m = 2

    n = 0

• m = -3

    n = 0

• m = 3

    n = 0