Systems of linear equations

Systems of linear equations

Find both x- and y- coordinates of the solution to each system using substitution.

1) 2 y + 4 = -3x 0 = -x + y - 3

2) 0 = -x - 2 + y

-2 y

-

2

+

1 x

=

0

2

3) -2x - 8 y = 8 0 = x - 2y - 8

4) -3 y = -9 - x 0 = -6 y - 18 - 10x

5) 6 = -x + 2 y 4x - y = 4

6) -12 = 6x + 3 y 1= y+ 1x 3

7) -3 + 2x = -3 y 0 = 6 + 3y - x

8) - y = 4 -3x - 1 = y

9) - y = -4 + 2x -2 y = 8 - 12x

10) - 1 = x + 1 y

2

2

-y - 4 + x = 0

11) -3x = -2 y - 4 -8 + 2 y + 3x = 0

12) -2 = -x + y 6x - y = -3

13) 4 y - 8 + x = 0 7x + 16 = -4 y

14) x - 4 y = -12 6x - 4y - 8 = 0

15) -2 y + 2 = -3x 4 = -x - y

16) -4 + y = -2x -3 - y + 5x = 0

17) - 2 x = -1 + 1 y

3

4

-6 = 3y + 2x

18) -2 y - 3x = 8 3x = -4 + 2 y

19) -3 y - 12 - 9x = 0 -x = -y + 4

20) 24 = -21x + 6 y 4 + 2y - x = 0

21) 0 = - y + 3 - 3x 3x - 24 = 6 y

22) - y - 4x = 1 4+x= y

23) 2x - 1 = - y 4 + 2y + x = 0

24) 0 = 3 - 5x - y 2x - 6 = 2y

25) 0 = -3 - x - y 8 = -x + 4y

26) 7x = -3 - y -3 + y = -x

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