2 2 4x 12 July 8, 2019 16 32 64 128 2 4x 2 )= 4x 12 x 1 2 x 2 4x 12 2 x 2 )- 4x 12 solve for x 2 x 3 )= 2 4x 12 2x 3 2 4x 2 12x 9 4 + 4 = 12