3n-3(n-4)=9

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Solution for 3n-3(n-4)=9 equation:


3n-3(n-4)=9

We simplify the equation to the form, which is simple to understand 
3n-3(n-4)=9

Reorder the terms in parentheses
3n+(-3n+12)=9

Remove unnecessary parentheses
+3n-3n+12=+9

We move all terms containing n to the left and all other terms to the right. 
+3n-3n=+9-12

We simplify left and right side of the equation. 
n=-3

0=-3

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

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