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5n+-2=3n+12
We move all terms to the left:
5n+-2-(3n+12)=0
We add all the numbers together, and all the variables
5n-(3n+12)=0
We get rid of parentheses
5n-3n-12=0
We add all the numbers together, and all the variables
2n-12=0
We move all terms containing n to the left, all other terms to the right
2n=12
n=12/2
n=6
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