n+15=-n+7

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Solution for n+15=-n+7 equation: 



n+15=-n+7

We move all terms to the left:

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

We add all the numbers together, and all the variables

n-(-1n+7)+15=0

We get rid of parentheses

n+1n-7+15=0

We add all the numbers together, and all the variables

2n+8=0

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

2n=-8

n=-8/2

n=-4

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