7n+4=31

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Solution for 7n+4=31 equation: 



7n+4=31

We move all terms to the left:

7n+4-(31)=0

We add all the numbers together, and all the variables

7n-27=0

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

7n=27

n=27/7

n=3+6/7

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