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