12n-15=3(2n+3)

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Solution for 12n-15=3(2n+3) equation: 



12n-15=3(2n+3)

We move all terms to the left:

12n-15-(3(2n+3))=0



We calculate terms in parentheses: -(3(2n+3)), so:

3(2n+3)

We multiply parentheses

6n+9

Back to the equation:

-(6n+9)



We get rid of parentheses

12n-6n-9-15=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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