4x 18 2x 5 July 8, 2019 16 32 64 128 4x 5y 6 2x 5y 18 4x 18 2x 7x 5 3 4x 18 1 2x 5 5x 4 4x 18 2x 7 180 5x 4 4x 18 2x 7 1 4x 18 3 4 2x 5 2x 5 18 4x 3 10 4x 2x 5 x 3 18 4x = 18