3 4x 9 6x 4 12 July 8, 2019 16 32 64 128 6x 3 4x 12x 4 9 3 4 - 9x = 1 6 6xy - 4y + 6 - 9x 12 - 4(x - 3) = 39 - 9x 3/4 6x - 3 + 9 2 = 11