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6n=3+42n
We move all terms to the left:
6n-(3+42n)=0
We add all the numbers together, and all the variables
6n-(42n+3)=0
We get rid of parentheses
6n-42n-3=0
We add all the numbers together, and all the variables
-36n-3=0
We move all terms containing n to the left, all other terms to the right
-36n=3
n=3/-36
n=-1/12
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