7n+1n=21

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Solution for 7n+1n=21 equation: 



7n+1n=21

We move all terms to the left:

7n+1n-(21)=0

We add all the numbers together, and all the variables

8n-21=0

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

8n=21

n=21/8

n=2+5/8

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