3 2x 2 7x 12 0 July 8, 2019 16 32 64 128 X 3 2x 2 7x 12 0 2x 3 5x 2 7x 12 0 X 4 2x 3 7x 2 8x 12 0 X 4 2x 3 7x 2 20x 12 0 2 − 3(7 + 2x) = 11 - 12 + 3x 0 2-7x -33 12 - 3(2x + 7) = 2 - 9x
