n+2(n+3)=18

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



n+2(n+3)=18

We move all terms to the left:

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

We multiply parentheses

n+2n+6-18=0

We add all the numbers together, and all the variables

3n-12=0

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

3n=12

n=12/3

n=4

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