3n+4n+n=2n+15

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Solution for 3n+4n+n=2n+15 equation: 



3n+4n+n=2n+15

We move all terms to the left:

3n+4n+n-(2n+15)=0

We add all the numbers together, and all the variables

8n-(2n+15)=0

We get rid of parentheses

8n-2n-15=0

We add all the numbers together, and all the variables

6n-15=0

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

6n=15

n=15/6

n=2+1/2

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