0.2(d-6)=0.3d-5-3-0.1d

Solution for 0.2(d-6)=0.3d-5-3-0.1d equation:

0.2(d-6)=0.3d-5-3-0.1d

We simplify the equation to the form, which is simple to understand 
0.2(d-6)=0.3d-5-3-0.1d

Reorder the terms in parentheses
+( + 0.2d-1.2)=0.3d-5-3-0.1d

Remove unnecessary parentheses
 + 0.2d-1.2=0.3d-5-3-0.1d

We move all terms containing d to the left and all other terms to the right. 
 + 0.2d-0.3d + 0.1d=-5-3+1.2

We simplify left and right side of the equation. 
+2.7755575615629E-17d=-6.8

We divide both sides of the equation by 2.7755575615629E-17 to get d. 
d=-2.4499581972895E+17