Math
Solve for 3x - 2y = 9 and - 4x - 2y = 16

Asked by
AnneS2
Last updated by
anonymous
- 4x - 2y = 16
- 4x - 2y+4x = 16+4x
-2y= 16+4x
-2y/-2= 16/-2+4x/-2
y=-8-2x
3x - 2y = 9
3x - 2(-8-2x) = 9
3x - 2(-8) (-2)(-2x) = 9
3x+16+4x=9
16+7x=9
16+7x-16=9-16
7x=-7
7x/7=-7/7
x=-1
y=-8-2x
y=-8-2(-1)
y=-8+2
y=-6