13t-8(3t-2)=-7t-5(12-3t)
5х-6-х=3х-(4-2х)
-2(х+3)=2х-1
1,3(t-0,6)=1,8t

13т-8(3т-2)=-7т-5(12-3т)13т-24т+16=-7т-60+15т13т-24т+7т-15т=-60-16 -19т=-76 19т=76 т=76:19 т=413*4-24*4+16=-7*4-60+15*452-96+16=-28-60+60 -28=-285х-6-х=3х-(4-2х)5х-х-6=3х-4+2х5х-х-3х-2х=-4+6 -1х=2 1х=-2 х=-2:1 х=-25*(-2)-6-(-2)=3*(-2)-(4-2(-2))-10-6+2=-6-4-4 -14=-14-2(х+3)=2х-1-2х-6=2х-12х+2х=-6+1 4х=-5 х=-5:4 х=-1,25-2((-1,25)+3)=2*(-1,25)-1-2*1,75=-2,5-1 -3,5=-3,51,3(т-0,6)=1,8т1,3т-0,78=1,8т 1,8т-1,3т=-0,78 0,5т=-0,78 т=-0,78:0,5 т=-1,561,3((-1,56)-0,6)=1,8*(-1,56)1,3*(-2,16)=-2,808 -2,808=-2,808