7=5+2n-n

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Solution for 7=5+2n-n equation: 



7=5+2n-n

We move all terms to the left:

7-(5+2n-n)=0

We add all the numbers together, and all the variables

-(n+5)+7=0

We get rid of parentheses

-n-5+7=0

We add all the numbers together, and all the variables

-1n+2=0

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

-n=-2

n=-2/-1

n=+2

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