N+4=7+n

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Solution for N+4=7+n equation: 



+4=7+N

We move all terms to the left:

+4-(7+N)=0

We add all the numbers together, and all the variables

-(N+7)+4=0

We get rid of parentheses

-N-7+4=0

We add all the numbers together, and all the variables

-1N-3=0

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

-N=3

N=3/-1

N=-3

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