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-211/7n=5/7n
We move all terms to the left:
-211/7n-(5/7n)=0
Domain of the equation: 7n!=0
n!=0/7
n!=0
n∈R
Domain of the equation: 7n)!=0We add all the numbers together, and all the variables
n!=0/1
n!=0
n∈R
-211/7n-(+5/7n)=0
We get rid of parentheses
-211/7n-5/7n=0
We multiply all the terms by the denominator
-211-5=0
We add all the numbers together, and all the variables
-216!=0
There is no solution for this equation
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