9n-(4n+7)=13

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Solution for 9n-(4n+7)=13 equation: 



9n-(4n+7)=13

We move all terms to the left:

9n-(4n+7)-(13)=0

We get rid of parentheses

9n-4n-7-13=0

We add all the numbers together, and all the variables

5n-20=0

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

5n=20

n=20/5

n=4

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