2(-3)+3+5-3(-3)=

Solution for 2(-3)+3+5-3(-3)= equation:

2(-3)+3+5-3(-3)=0

We simplify the equation to the form, which is simple to understand 
2(-3)+3+5-3(-3)=0

Reorder the terms in parentheses
+(-6)+3+5-3*(-3)=0

Remove unnecessary parentheses
-6+3+5-3+*(-3+)=0

Reorder the terms in parentheses
-6+3+5+(+9)=0

Remove unnecessary parentheses
-6+3+5+9=0

We move all terms containing  to the left and all other terms to the right. 
0=0+6-3-5-9

We simplify left and right side of the equation. 
0=-11

0=-11

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