9 x 1 7x July 8, 2019 16 32 64 128 9 x 1 )- 7x 2 9 7 x 5x 1 7x 9 1 x ) - 7x 5 3x 9 x 1 )+ 7x 3x 9 x 1 )+ 7x 15 9x 9 7x 1 Simplify 3x 9 x 1 )+ 7x X 1 7x 9 5x 17 9 x 8 = 9-x 7