1)250-(175-y)=125 2)77×x+401=1248 3)825-405: y=780 - вопрос №125017512527740112483825405780439001015306421523 от evasauteeva 15.10.2021 13:32

Question

Математика: 1)250-(175-y)=125 2)77×x+401=1248 3)825-405: y=780 4)3900: (10+15×x) =30

evasauteeva · Answer

1).250-(175-y)=125 2).77×X+401=1248 175-y=250-125 77×X=1248-401 175-y=315 77×X=847 y=315-175 X=847÷77 y=140 X=11 250-(175-140)=125 77×11+401=1248...