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12n+6=4n-6
We move all terms to the left:
12n+6-(4n-6)=0
We get rid of parentheses
12n-4n+6+6=0
We add all the numbers together, and all the variables
8n+12=0
We move all terms containing n to the left, all other terms to the right
8n=-12
n=-12/8
n=-1+1/2
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