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-21/7n-6/7=13/7
We move all terms to the left:
-21/7n-6/7-(13/7)=0
Domain of the equation: 7n!=0We add all the numbers together, and all the variables
n!=0/7
n!=0
n∈R
-21/7n-6/7-(+13/7)=0
We get rid of parentheses
-21/7n-6/7-13/7=0
We calculate fractions
=0
n=0/1
n=0
Równanie nie ma rozwiązania
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