Solve for 5x - 4y = 26 and - 5x - 4y = - 34

Asked by AnneS2 on 18 Jun 05:08

Last updated by anonymous on 19 Jun 13:02

Answered by CherieS on 19 Jun 13:02

5x - 4y = 26

5x - 4y -5x= 26-5x

-4y= 26-5x

-4y/-4= 26/-4-5x/-4

y=-6.5+1.25x

- 5x - 4y = - 34

- 5x - 4(-6.5+1.25x) = - 34

- 5x - 4(-6.5) (-4)(+1.25x) = - 34

- 5x +26 -5x= - 34

26 -10x= - 34

26 -10x-26= - 34-26

-10x=-60

-10x/-10=-60/-10

x=6

y=-6.5+1.25x

y=-6.5+1.25(6)

y=-6.5+7.5

y=1