n/3+18=21

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Solution for n/3+18=21 equation: 



n/3+18=21

We move all terms to the left:

n/3+18-(21)=0

We add all the numbers together, and all the variables

n/3-3=0

We multiply all the terms by the denominator


n-3*3=0

We add all the numbers together, and all the variables

n-9=0

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

n=9

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