3 4x 1 2 =- 9 2x July 8, 2019 16 32 64 128 3 2x 9 )+ 1 2 4x 8 )= 55 X 4x 1 )-( 2x 3 2 =- 9 25 4x 3 2 9 2x 1 2 4x 3 4x 2 19x 9 2x 1 4x 3 6x 2 20x 9 2x 1 4x 2 9 =( 3x 1 )( 2x 3 2x 9 1 6 4x 3 1 2 3 x 3 = 9 4 1/2x=9 9 4 9 - x / 1 2 = 3
