1/3n=-7

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Solution for 1/3n=-7 equation: 



1/3n=-7

We move all terms to the left:

1/3n-(-7)=0



Domain of the equation: 3n!=0

n!=0/3

n!=0

n∈R



We add all the numbers together, and all the variables

1/3n+7=0

We multiply all the terms by the denominator


7*3n+1=0

Wy multiply elements

21n+1=0

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

21n=-1

n=-1/21

n=-1/21

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