5x 3x 2 )= 4 9x 2 July 8, 2019 16 32 64 128 2x 4 9x 3 5x 2 3x 1 2x 4 9x 3 5x 2 3x 4 5x 3 9x 4 x 2 3x 2 5-x = 9 2-3x -4