0,2*(5x-2)=0,3*(2x-1)-0,9
0,3*(5x-7)=3*(0,2x+3,2)

0,2*(5x-2)=0,3*(2x-1)-0,9х-0,4=0,6х-0,3-0,9х-0,6х=-1,20,4х=-1,2х=-30,3*(5x-7)=3*(0,2x+3,2)1,5х-2,1=0,6х+9,61,5х-0,6х=9,6+2,10,9х=11,7х=13

0,2*(5x-2)=0,3*(2x-1)-0,9х-0,4=0,6х-0,3-0,9х-0,6х=-1,20,4х=-1,2 :0,4х=-30,3*(5x-7)=3*(0,2x+3,2)1,5х-2,1=0,6х+9,61,5х-0,6х=9,6+2,10,9х=11,7:0,9х=13