3(n-5)=21

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Solution for 3(n-5)=21 equation:


3(n-5)=21

We simplify the equation to the form, which is simple to understand 
3(n-5)=21

Reorder the terms in parentheses
+(+3n-15)=21

Remove unnecessary parentheses
+3n-15=+21

We move all terms containing n to the left and all other terms to the right. 
+3n=+21+15

We simplify left and right side of the equation. 
+3n=+36

We divide both sides of the equation by 3 to get n. 
n=12

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