(n+54)/9=21

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Solution for (n+54)/9=21 equation: 



(n+54)/9=21

We move all terms to the left:

(n+54)/9-(21)=0

We multiply all the terms by the denominator


(n+54)-21*9=0

We add all the numbers together, and all the variables

(n+54)-189=0

We get rid of parentheses

n+54-189=0

We add all the numbers together, and all the variables

n-135=0

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

n=135

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