Math
Solve for both systems: 2x - 2y = 4 and 2x - y = 9

Asked by
AnneS2
Last updated by
anonymous
2x - 2y = 4
2x - 2y+2y = 4 +2y
2x= 4 +2y
2x/2= 4 +2y/2
x=2+y
2x - y = 9
2(2+y) - y = 9
2(2) (2)(+y) - y = 9
4+2y-y=9
4+y=9
4+y-4=9-4
y=5
x=2+y
x=2+5=7