3 x 27 9 2x July 8, 2019 16 32 64 128 27 x 1 9 2x 3 9 2x 3 27 x 5 27 x 9 2x 1 3 x 4 Solve for x 9 x 3 27 2x 5 3 2x ≦ 9 27 x 3 x 3 = 9 3 2-x 27