6 8 1 3х 7 2 July 8, 2019 16 32 64 128 6 8 1 3х 0 6х 2 7 (6 8-1 3)×7 2 6 8 - 1/3х=7 2 6 7/8 - 7 1/3 6 7/8-3 1/3
