(X+7):8=9. 48:(X+3)=6
(X+7):8=9 х+7=72 х=72-7 х=65 48:(X+3)=6 6(х+3)=48 х+3=48/6 х+3=8 х=8-3 х=5
(х+7):8=9 48:(х+3) =6 х+7 = 9×8 х+3=48:3 х+7 = 72 х+3=8 х= 72-7 х=8-3 х = 65 х=5