4 5-х=13 1 July 8, 2019 16 32 64 128 4 5 x 13 1 4 5 13 16 4 5 13 10 4 5 13 18 4 5 13 14 4 5 13 12 4 5 13 1 4 5 13 15 4 5 x 13 12 4 5 x 13 13 4х-5 1=3 4х+4 2
