9=12/3n

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Solution for 9=12/3n equation:



9=12/3n
We move all terms to the left:
9-(12/3n)=0
Domain of the equation: 3n)!=0
n!=0/1
n!=0
n∈R
We add all the numbers together, and all the variables
-(+12/3n)+9=0
We get rid of parentheses
-12/3n+9=0
We multiply all the terms by the denominator
9*3n-12=0
Wy multiply elements
27n-12=0
We move all terms containing n to the left, all other terms to the right
27n=12
n=12/27
n=4/9

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