7. 1 2 (6x- July 8, 2019 16 32 64 128 7 6x 1 6x 2 6x 7 1 2 x 1 2 6x 4 )= 7 1 1/6 x 2 2/7 4 4x 2 )+ 7 1 6x 7 2x 1 )- 11 =- 2 6x 7 2 6x 1 )=- 49 7 2x 3 2 1 6x 43 3 6x139 7 1 2 spacer 7 6x 1 2 =- 3 6 x 1 )= 7 2 6x 8 7 x 2 )- 6x 1 3 4x 2 3x 7 1 6x 12 1 2 6x 2 )- 7 =- 29
