84=6n+9

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Solution for 84=6n+9 equation: 



84=6n+9

We move all terms to the left:

84-(6n+9)=0

We get rid of parentheses

-6n-9+84=0

We add all the numbers together, and all the variables

-6n+75=0

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

-6n=-75

n=-75/-6

n=12+1/2

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