9n-7=3n+13

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Solution for 9n-7=3n+13 equation: 



9n-7=3n+13

We move all terms to the left:

9n-7-(3n+13)=0

We get rid of parentheses

9n-3n-13-7=0

We add all the numbers together, and all the variables

6n-20=0

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

6n=20

n=20/6

n=3+1/3

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