3x-1=2 (x-2); 3(x+5)=7-5x
3х-1=2(х-2) х+4=1 х=-3 3(х+5)=7-5х 3(х+5)=-5х+7 х=-1
3х-1=2(х-2) 3(х+5)=7-5х 3х-1=2х-4 3х+15=7-5х 3х-2х=-4+1 3х+5х=7-15 х=-3 8х=-8 х=-8:8 x=-1
У тебя правильно спосибо