3 10 х 2 6 7 х 1 5 9 July 8, 2019 16 32 64 128 2 3/7 - 10 х 1/2 6 3/11 + х =10 6/7 6 3/7 х 3 1/3 / 1 2/7 6 2/10-х=3 7/10
