1 2 7 x 3 1 6 July 8, 2019 16 32 64 128 2 3 1 7 x 5 6 1 12 1 1 2 x 3 8 7 6 1 2 7 x 3 1 6 x 2 9 7 3x 1 )+ 2 x 7 )= 3 6x 1 7 2 x 1 )/ 3 6x 5 3x 1 2 x )+ 1 3 7 6 x 1/2 + 1/3 + 1/6 1/2 x 7 x 6 1 3/7 x 2 7. 1 3 (6x