0 4 х 15 July 8, 2019 16 32 64 128 0 4 х 12 15 0 4 x 12 15 Х 0 4 7 15 0 5 х 15 2 4 0 4 x 15 1 2 15 0 4 х 0 4 x 150 0 4 x 1500 0 4-0 15 0х 15 0 15×х=4 5
