We need to solve x + 2y = 2 for y x = 2y +2 Now substitute -2y + 2 for x in x - 2y =-2 x -2y = -2 -2y + 2 - 2y= -2 -4y + 2 = -2 -4y = -2 - 2 -4y = -4 y = -4/-4 y= 1
We gonna use the value of y to find x We gonna find x by substitute 1 for y in x = -2y + 2 x = -2y + 2 x = -2(1)+2 x= -2 + 2 x = 0