Hitunglah. (1) (x + 3y)/4 + (3x - y)/6 (2) (x - y)/4 - (2x

Hitunglah. (1) (x + 3y)/4 + (3x - y)/6 (2) (x - y)/4 - (2x + y)/8 (3) 1/9 (5x + 3y) - 1/3 (x - y) (4) x + y - (4x - 2y)/5