What is the solution to the system of equations?
y=x-2
2x+2y=4
(1) y=x-2
(2) 2x+2y=4
insert (1) in (2)
2x+2(x-2)=4
2x+2x-4 =4
4x-4=4 |+4
4x=8 |:4
x=2
insert x in (1)
y=2-2
y=0
