3/2(6+1)=3

Solution for 3/2(6+1)=3 equation:

3/2(6+1)=3

We simplify the equation to the form, which is simple to understand 
3/2(6+1)=3

Simplifying:
+1.5*(6+1)=3

Simplifying terms in parentheses
+1.5*(+7)=3

Reorder the terms in parentheses
+(+10.5)=3

Remove unnecessary parentheses
+10.5=+3

We move all terms containing  to the left and all other terms to the right. 
0=+3-10.5

We simplify left and right side of the equation. 
0=-7.5

0=-7.5

The left and right sides are not equal, therefore there is no solution. This equation is invalid.