X 5 15 7 July 8, 2019 16 32 64 128 X 5 15 75 5 х 7 15 X 5 2 7 15 21 5 x 15 7 (- 3 5 x 15 7 3 x 5 )= 7x 15 − 3x 8 5 x 15 7 4 5 x 15 7 14 5 x 15 7 5 *( 15 x )- 7 28 11 15 x 5 7 1 3 x 5 = 7 15 5 x 7 15 as a fraction 5 x 7 )+ 15 9x 18 X 1 5 7 15