3 4x 12 =- 2x 9 July 8, 2019 16 32 64 128 7x 12 4x 9 2x 3 3 2x 9 )+ 12 4x − 8 )= 55 Solve 3 2x 9 )+ 12 4x − 8 )= 55 12 3x - 4 9 = 2 3x + 9 6 12 - 4(x - 3) = 39 - 9x 12 x 4 + 3 12 * 4 + 3 12 2 x 4 3