7n+13=9n-31

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Solution for 7n+13=9n-31 equation: 



7n+13=9n-31

We move all terms to the left:

7n+13-(9n-31)=0

We get rid of parentheses

7n-9n+31+13=0

We add all the numbers together, and all the variables

-2n+44=0

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

-2n=-44

n=-44/-2

n=+22

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