3/7*n=9

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Solution for 3/7*n=9 equation: 



3/7n=9

We move all terms to the left:

3/7n-(9)=0



Domain of the equation: 7n!=0

n!=0/7

n!=0

n∈R



We multiply all the terms by the denominator


-9*7n+3=0

Wy multiply elements

-63n+3=0

We move all terms containing n to the left, all other terms to the right

-63n=-3

n=-3/-63

n=1/21

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