Math

Solve for both systems 4x + 4y = 12 and 2x + 4y = - 6

Asked by AnneS2 on 28 Aug 06:24

Last updated by anonymous on 29 Aug 19:34

1 Answers

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Answered by CherieS on 29 Aug 19:34

4x + 4y = 12

4x-4x + 4y = 12-4x

4y = 12-4x

4y/4 = 12-4x/4

y=3-x

2x + 4y = - 6

2x + 4(3-x) = - 6

2x + 4(3) (4)(-x) = - 6

2x+12-4x=-6

12-2x=-6

12-2x-12=-6-12

-2x=-18

-2x/-2=-18/-2

x=9

y=3-x

y=3-9=-6