N-3=5n+21

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Solution for N-3=5n+21 equation: 



-3=5N+21

We move all terms to the left:

-3-(5N+21)=0

We get rid of parentheses

-5N-21-3=0

We add all the numbers together, and all the variables

-5N-24=0

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

-5N=24

N=24/-5

N=-4+4/5

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