12n-9=9n+3

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Solution for 12n-9=9n+3 equation:



12n-9=9n+3
We move all terms to the left:
12n-9-(9n+3)=0
We get rid of parentheses
12n-9n-3-9=0
We add all the numbers together, and all the variables
3n-12=0
We move all terms containing n to the left, all other terms to the right
3n=12
n=12/3
n=4

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