3+4+n=2n+15

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



3+4+n=2n+15

We move all terms to the left:

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

We add all the numbers together, and all the variables

n-(2n+15)+7=0

We get rid of parentheses

n-2n-15+7=0

We add all the numbers together, and all the variables

-1n-8=0

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

-n=8

n=8/-1

n=-8

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