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10-4n=n+7
We move all terms to the left:
10-4n-(n+7)=0
We get rid of parentheses
-4n-n-7+10=0
We add all the numbers together, and all the variables
-5n+3=0
We move all terms containing n to the left, all other terms to the right
-5n=-3
n=-3/-5
n=3/5
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