-3/7n=21

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Solution for -3/7n=21 equation: 



-3/7n=21

We move all terms to the left:

-3/7n-(21)=0



Domain of the equation: 7n!=0

n!=0/7

n!=0

n∈R



We multiply all the terms by the denominator


-21*7n-3=0

Wy multiply elements

-147n-3=0

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

-147n=3

n=3/-147

n=-1/49

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