5x 9 4x 11 July 8, 2019 16 32 64 128 9 5x 3 )= 11 4x 3 4x 9 5x 11 7x =- 20 4x 9 5x 11 7x 3 2x 9 4x 11 5x x Solve 4x 9 5x 11 7x =- 20 3x 3 5x x 7 9 4x 11 5x-9 11 5 + 9 = 14