Math

Solve for both systems: 5x + 5y = 0 and 20x + 2y = - 180

Asked by AnneS2 on 06 Oct 03:32

Last updated by anonymous on 07 Oct 11:06

1 Answers

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Answered by CherieS on 07 Oct 11:06

5x + 5y = 0

5x-5x + 5y = 0-5x

5y = 0-5x

5y /5= 0-5x /5

y=0-x

20x + 2y = - 180

20x + 2(0-x) = - 180

20x + 2(0) (2)(-x) = - 180

20x-2x= - 180

18x= - 180

18x/18= - 180/18

x=-10

y=0-x

y=0-(-10)

y=10