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7/9n=2+1/9n
We move all terms to the left:
7/9n-(2+1/9n)=0
Domain of the equation: 9n!=0
n!=0/9
n!=0
n∈R
Domain of the equation: 9n)!=0We add all the numbers together, and all the variables
n!=0/1
n!=0
n∈R
7/9n-(1/9n+2)=0
We get rid of parentheses
7/9n-1/9n-2=0
We multiply all the terms by the denominator
-2*9n+7-1=0
We add all the numbers together, and all the variables
-2*9n+6=0
Wy multiply elements
-18n+6=0
We move all terms containing n to the left, all other terms to the right
-18n=-6
n=-6/-18
n=1/3
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