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10n-12=2n-4
We move all terms to the left:
10n-12-(2n-4)=0
We get rid of parentheses
10n-2n+4-12=0
We add all the numbers together, and all the variables
8n-8=0
We move all terms containing n to the left, all other terms to the right
8n=8
n=8/8
n=1
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