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2/3n-1=1/3n+9
We move all terms to the left:
2/3n-1-(1/3n+9)=0
Domain of the equation: 3n!=0
n!=0/3
n!=0
n∈R
Domain of the equation: 3n+9)!=0We get rid of parentheses
n∈R
2/3n-1/3n-9-1=0
We multiply all the terms by the denominator
-9*3n-1*3n+2-1=0
We add all the numbers together, and all the variables
-9*3n-1*3n+1=0
Wy multiply elements
-27n-3n+1=0
We add all the numbers together, and all the variables
-30n+1=0
We move all terms containing n to the left, all other terms to the right
-30n=-1
n=-1/-30
n=1/30
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