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12-n+1+3n=11-3n
We move all terms to the left:
12-n+1+3n-(11-3n)=0
We add all the numbers together, and all the variables
-n+3n-(-3n+11)+12+1=0
We add all the numbers together, and all the variables
2n-(-3n+11)+13=0
We get rid of parentheses
2n+3n-11+13=0
We add all the numbers together, and all the variables
5n+2=0
We move all terms containing n to the left, all other terms to the right
5n=-2
n=-2/5
n=-2/5
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