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