n+7+n=3

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Solution for n+7+n=3 equation: 



n+7+n=3

We move all terms to the left:

n+7+n-(3)=0

We add all the numbers together, and all the variables

2n+4=0

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

2n=-4

n=-4/2

n=-2

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