9(n+4)=(12+3n)

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Solution for 9(n+4)=(12+3n) equation: 



9(n+4)=(12+3n)

We move all terms to the left:

9(n+4)-((12+3n))=0

We add all the numbers together, and all the variables

9(n+4)-((3n+12))=0

We multiply parentheses

9n-((3n+12))+36=0



We calculate terms in parentheses: -((3n+12)), so:

(3n+12)

We get rid of parentheses

3n+12

Back to the equation:

-(3n+12)



We get rid of parentheses

9n-3n-12+36=0

We add all the numbers together, and all the variables

6n+24=0

We move all terms containing n to the left, all other terms to the right

6n=-24

n=-24/6

n=-4

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