6x - 4 = y 3x + 3 = 2y	3x + 3 = 2 ( 6x -4) 3x + 3 = 12x - 8 12x - 8 -3x - 3 = 0 9x - 11 = 0 x = 11/9 6(11/9 - 4 ) = y 22/3 - 12/3 = y 10/3 = y
4x - 8 = y y = 2x - 4	4x - 8 = 2x -4 4x - 8 -2x - 4 = 0 2x - 4 = 0 2x = 4 x = 2 (4 x 2) - 8 = y 8 - 8 = y
5 x - 5 = y x - 4y = 6	x - 4(5x - 5) = 6 x - 20x + 20 = 6 -19x = 6 - 20 -19x = - 14 x = 14/19 (5 x 14/19) - 5 = y 70/19 -95/19 = y -25/19 = y