4 3x 5 7 x 3 4 1 3 0 July 8, 2019 16 32 64 128 5 x 7 = 35 4(3x−4)−5(3x−7) при x = 3x=3 5 3/7 - 4x = 3/7 - 1/4 * x 7x+3 = 5(x - 4) + 1 4x+1 =43-3(7+x)