Question 832783
y=0.5x+2
-y=-2x+4

substitute 0.5x+2 for y in -y=-2x+4
-(0.5x+2)=-2x+4
-0.5x - 1 = -2x + 4
add 2x to each side
1.5x -1 = 4
add 1 to each side
1.5x = 3
divide each side by 1.5
x = 2

Since y = 0.5x + 2 , y = 1 + 2 = 3
y = 3