9-3n=3n-9

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



9-3n=3n-9
We move all terms to the left:
9-3n-(3n-9)=0
We get rid of parentheses
-3n-3n+9+9=0
We add all the numbers together, and all the variables
-6n+18=0
We move all terms containing n to the left, all other terms to the right
-6n=-18
n=-18/-6
n=+3

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