3n+21=8n+1

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Solution for 3n+21=8n+1 equation: 



3n+21=8n+1

We move all terms to the left:

3n+21-(8n+1)=0

We get rid of parentheses

3n-8n-1+21=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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