3n=9n-12

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Solution for 3n=9n-12 equation:



3n=9n-12
We move all terms to the left:
3n-(9n-12)=0
We get rid of parentheses
3n-9n+12=0
We add all the numbers together, and all the variables
-6n+12=0
We move all terms containing n to the left, all other terms to the right
-6n=-12
n=-12/-6
n=+2

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