20x 3y 5 July 8, 2019 16 32 64 128 20x 3y 5 50x 2y 3 20x 3y 5 5x 2y 2 20x 3y 15x 2y 5z 2 20x 3y 8 /- 5x 3y 20x 10y 8 5x 3y 7
