0.6x-5(0.3+0.2)=0.5(x-1)-0.8

0.6х-х=0.5(-1)-0.8+5(0.3+0.2)
0.6х-x=-0.5-0.8+1.5+1
0.6x-x=-1.3+2.5
0.6x-x=1.2|:0.6
x-x=0.6|:(-1)
x=-0.6