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8n+7n=6n+2n
We move all terms to the left:
8n+7n-(6n+2n)=0
We add all the numbers together, and all the variables
8n+7n-(+8n)=0
We add all the numbers together, and all the variables
15n-(+8n)=0
We get rid of parentheses
15n-8n=0
We add all the numbers together, and all the variables
7n=0
n=0/7
n=0
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