Решите линейное уравнение #1,2
1)3х-1=2(х-2) 3х-1=2х-4 3х-2х=-4+1 х=-3 2)3(х+5)=7-5х 3х+15=7-5х 3х+5х=7-15 8х=-8 х=-8:8 х=-1