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10/21n=6/7
We move all terms to the left:
10/21n-(6/7)=0
Domain of the equation: 21n!=0We add all the numbers together, and all the variables
n!=0/21
n!=0
n∈R
10/21n-(+6/7)=0
We get rid of parentheses
10/21n-6/7=0
We calculate fractions
There is no solution for this equation
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