12/20n=-2

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Solution for 12/20n=-2 equation: 



12/20n=-2

We move all terms to the left:

12/20n-(-2)=0



Domain of the equation: 20n!=0

n!=0/20

n!=0

n∈R



We add all the numbers together, and all the variables

12/20n+2=0

We multiply all the terms by the denominator


2*20n+12=0

Wy multiply elements

40n+12=0

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

40n=-12

n=-12/40

n=-3/10

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