1)1 1/3 (2x-3)=4 2/3x+7 2)5 (x-7)-3(x-4)=11 3)4 (2x-7)+5(-3x-4)=15
4/3(2х-3)=14х/3+7 8х/3-14х/3=11 -6х/3=11 -6х=33 х=-33/6 5х-35-3х+12=11 2х=34 х=17 8х-28-15х-20=15 -7х=63 х=-9