6 (- 1 2x ) 7 =- 83 July 8, 2019 16 32 64 128 6 (- 1 2x )+ 7 =- 83 2 6+7x=6 8 6 7 - x = 2 8 6 1 - 7 2 / 2 2 7. 1 2 (6x-
