4 2x 3 3 7 3x 6 July 8, 2019 16 32 64 128 X 1 4 3x 7 6 2x 3 3 4(2x + 3) - 3 6x - 7 6) - 7(- 4x + 3) + 2(3x - 7) = 4 7x3 2