9 x 3 2x 1 4 x 1 July 8, 2019 16 32 64 128 3 5 x 4 )- 1 3 2x 9 )= 1 4 x 1 )- 2 9 2x 1 )- 5 11 x )= 3 x 4 2 3 2x 1 4 9 x 2 9 6 x 1 9 1 2 − 4 ( x − 3 ) = 3 9 − 9 x 3 x 3 = 9 9 x 8 = 4 9 - x / 1 2 = 3