Solve - 4x + 3y = - 36 and - 4x - 5y = - 36

Asked by AnneS2 on 02 Jun 06:10

Last updated by anonymous on 03 Jun 11:04

Answered by CherieS on 03 Jun 11:04

- 4x + 3y = - 36

- 4x + 3y+4y = - 36+4y

3x=- 36+4y

3x/3=- 36/3+4y/3

x=-12+1.333y

- 4x - 5y = - 36

- 4(-12+1.333y) - 5y = - 36

- 4(-12) (-4)(+1.333y) - 5y = - 36

48-5.3y-5y=-36

48-10.3y=-36

48-10.3y-48=-36-48

-1.3y=-84

-1.3y/-1.3=-84/-1.3

y=64.6

x=-12+1.333y

x=-12+1.333(64.6)

x=-12+86.1

x=74.1