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