-84=-5n-9

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Solution for -84=-5n-9 equation: 



-84=-5n-9

We move all terms to the left:

-84-(-5n-9)=0

We get rid of parentheses

5n+9-84=0

We add all the numbers together, and all the variables

5n-75=0

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

5n=75

n=75/5

n=15

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