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4(2n+1)=8n+4
We move all terms to the left:
4(2n+1)-(8n+4)=0
We multiply parentheses
8n-(8n+4)+4=0
We get rid of parentheses
8n-8n-4+4=0
We add all the numbers together, and all the variables
=0
n=0/1
n=0
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