3(n+7)=18+2n

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Solution for 3(n+7)=18+2n equation: 



3(n+7)=18+2n

We move all terms to the left:

3(n+7)-(18+2n)=0

We add all the numbers together, and all the variables

3(n+7)-(2n+18)=0

We multiply parentheses

3n-(2n+18)+21=0

We get rid of parentheses

3n-2n-18+21=0

We add all the numbers together, and all the variables

n+3=0

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

n=-3

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