Х 1 7 9 1 2 3 July 8, 2019 16 32 64 128 X 1 7 9 1 2 3 1 7 9 1 2 3 1 7 9 х 2 2 5 1 3 5 1 2 3 х 4 7 9 4 1 3 (7 1-х)+3 9=4 5 Х/7 = 9/2
