Math

Solve for both systems: - 2x - 2y = 4 and 2x - 5y = 17

Asked by AnneS2 on 02 Nov 07:31

Last updated by anonymous on 03 Nov 13:32

1 Answers

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Answered by CherieS on 03 Nov 13:32

- 2x - 2y = 4

- 2x +2x- 2y = 4+2x

- 2y = 4+2x

- 2y/-2 = 4+2x/-2

y=-2-x

2x - 5y = 17

2x - 5(-2-x) = 17

2x - 5(-2) (-5)(-x) = 17

2x+10+5x=17

10+7x=17

10+7x-10=17-10

7x=7

7x/7=7/7

x=1

y=-2-x

y=-2-1=-3