-3+3(1+4)=6(-6+3n)

Solution for -3+3(1+4)=6(-6+3n) equation:

-3+3(1+4)=6(-6+3n)

We simplify the equation to the form, which is simple to understand 
-3+3(1+4)=6(-6+3n)

Simplifying terms in parentheses
-3+3*(+5)=6*(-6+3n)

Reorder the terms in parentheses
-3+(+15)=6*(-6+3n)

Remove unnecessary parentheses
-3+15=+6+*(-6+3n+)

Reorder the terms in parentheses
-3+15=+(-36+18n)

Remove unnecessary parentheses
-3+15=-36+18n

We move all terms containing n to the left and all other terms to the right. 
-18n=-36+3-15

We simplify left and right side of the equation. 
-18n=-48

We divide both sides of the equation by -018 to get n. 
n=2.66666666667