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4-3n=n+4n
We move all terms to the left:
4-3n-(n+4n)=0
We add all the numbers together, and all the variables
-3n-(+5n)+4=0
We get rid of parentheses
-3n-5n+4=0
We add all the numbers together, and all the variables
-8n+4=0
We move all terms containing n to the left, all other terms to the right
-8n=-4
n=-4/-8
n=1/2
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