8n-21=21

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Solution for 8n-21=21 equation: 



8n-21=21

We move all terms to the left:

8n-21-(21)=0

We add all the numbers together, and all the variables

8n-42=0

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

8n=42

n=42/8

n=5+1/4

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