1 7 x 2x 9 July 8, 2019 16 32 64 128 7 x 1 )- 2x 9 4x 4 3x 1 )+ 7 x 2x 3 9x 7 2 x 1 )= 2x 9 1 3 x 9 )= 2x 7 3x 2x 1 )- 6x 7 x )= 90 9x 7 x 1 )=- 2x 7 2x 9x 8 x 1 7 x 1 4 2x 9 3 2x 1 x 7 90 7 3x x 1 2x 9 7 1 − x 4 1 2x 9 X 9 5x 1 x 7 2x 3 7 x 8 9 2x 1 (- x 7 )+ 5 3 1 2x 9 2x 1 7 or x 15 9
