21-3n=5

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Solution for 21-3n=5 equation: 



21-3n=5

We move all terms to the left:

21-3n-(5)=0

We add all the numbers together, and all the variables

-3n+16=0

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

-3n=-16

n=-16/-3

n=5+1/3

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