13 4х 5 1 3 4х 4 2 July 8, 2019 16 32 64 128 13 4х-5 1=3 4+4 2 13 4х-5 1=3 4х+4 2 13 – 3(5х + 1) – 6(4х – 3) = 5х 13 4x - 5 1 = 3 4x + 4 2
