3 6 х 1 7 8 6 5 July 8, 2019 16 32 64 128 3 6 х 1 2 7 8 6 5 3 6-1 8 3 6/х-1 2=7 8/6 5 3 6/7 8=x-1/6 5 3 6-8 7= 1) 3 6-8 7
