(6n-9n+10n)/12=21

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Solution for (6n-9n+10n)/12=21 equation: 



(6n-9n+10n)/12=21

We move all terms to the left:

(6n-9n+10n)/12-(21)=0

We add all the numbers together, and all the variables

(+7n)/12-21=0

We multiply all the terms by the denominator


(+7n)-21*12=0

We add all the numbers together, and all the variables

(+7n)-252=0

We get rid of parentheses

7n-252=0

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

7n=252

n=252/7

n=36

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