4n-5=n+7

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Solution for 4n-5=n+7 equation: 



4n-5=n+7

We move all terms to the left:

4n-5-(n+7)=0

We get rid of parentheses

4n-n-7-5=0

We add all the numbers together, and all the variables

3n-12=0

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

3n=12

n=12/3

n=4

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