5n+21=1

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Solution for 5n+21=1 equation: 



5n+21=1

We move all terms to the left:

5n+21-(1)=0

We add all the numbers together, and all the variables

5n+20=0

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

5n=-20

n=-20/5

n=-4

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