Плизз: 0.2(Х-2)=0.5(Х-5)
0.2x-0.4=0.5x-2.5 -0.3x=-2.1 x=7
0.2х-0.4=0.5х-2.5 -0.3х= -2.1 х= 7
0.5х5=2.5