9 x (- 15 6 x 3 July 8, 2019 16 32 64 128 9 x 7 15 3 x 6 9 x 3 6 12 x 9 15 x 3 15 The value of 25 18 x 9 15 x 6 35 9 x 8 = 15 x 9 = 15 * 3 x = 9 15 x 3 / x = 9