5x 21 = 2x July 8, 2019 16 32 64 128 5x 21 2x 6 5x 21 2x 15 5x 21 2x 3 5x 21 =- 2x 14 5x 21 2x 9 5x 21 2x 12 5x 21 2x 9 180 5x 3y 21 2x 3y 12 5x 7 =- 21 2x 12x 5x 21 2x 9 5x 3y 21 2x y 3