(3n+15)=45

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Solution for (3n+15)=45 equation: 



(3n+15)=45

We move all terms to the left:

(3n+15)-(45)=0

We get rid of parentheses

3n+15-45=0

We add all the numbers together, and all the variables

3n-30=0

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

3n=30

n=30/3

n=10

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