1. б) 3(х+2)+2(х-1)=4(х+3)3х+6+2х-2=4х+123х+2х-4х=12-6+22х=8х=8:2х=4в)5(х+1.2)-2(1.1х+1)=2.3х+0.45х+6-2.2х-2=2.3х+0.45х-2.2х-2.3х=0.4-6+20.5х=-3.6х=-3.6:0.5х=-7.2г)4х+7=3(х-1)4х+7=3х-34х-3х=-3-7х=-10д)3(х-1)+4(х+1)=6(х+2)3х-3+4х+4=6х+123х+4х-6х=12+3-4х=11е)3(х-1.1)+4(1.2х+2)=7.3х+0.73х-3.3+4.8х+8=7.3х+0.73х+4.8х-7.3х=0.7+3.3-80.5х=-4х=-4:0.5х=-8