8n+21=7

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Solution for 8n+21=7 equation: 



8n+21=7

We move all terms to the left:

8n+21-(7)=0

We add all the numbers together, and all the variables

8n+14=0

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

8n=-14

n=-14/8

n=-1+3/4

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