18x 5 6x 4 12x 3 6x 2 July 8, 2019 16 32 64 128 18x 5 6x 4 12x 3 6 * x 2 12 - (4x - 18) = (36 + 4x) + (18 - 6x) 2x + 5 = 2(x + 1) + 11 6x 18 5x 15 18x 5 18 6x+5 2-8 6x=31 2