Solve - 4x + y = 33 and 4x - 3y = - 19

Asked by AnneS2 on 02 Jul 05:09

Last updated by anonymous on 03 Jul 11:38

Answered by CherieS on 03 Jul 11:38

- 4x + y = 33

- 4x + y+4x = 33 +4x

y= 33 +4x

4x - 3y = - 19

4x - 3(33 +4x) = - 19

4x - 3(33) (-3)( +4x) = - 19

4x - 99 -12x = - 19

- 99 -8x = - 19

- 99 -8x+99 = - 19+99

-8x=80

-8x/-8=80/-8

x=-10

y= 33 +4x

y= 33 +4(-10)

y= 33 -40

y=-7