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