5x 21 2x 3 July 8, 2019 16 32 64 128 5x 3y 21 2x 3y 12 5x 3y 21 2x y 3 5x 4y 21 and 2x 3 y 2x 3 3x 2 5x 21 2x 3 5x 3 2x 1 )= 21 x 5x 3y 21 dan 2x y 3 5x 3y 21 2x 3y 14
