7 2x 3 ) 6 =- 2 (- 6x 20 )- 1 July 8, 2019 16 32 64 128 7 2x 3 )+ 6 =- 2 (- 6x 20 )- 1 2x 7 6(2x + 3) = 8 + 7x 2 6+7x=6 8