3/n-9=21

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Solution for 3/n-9=21 equation: 



3/n-9=21

We move all terms to the left:

3/n-9-(21)=0



Domain of the equation: n!=0

n∈R



We add all the numbers together, and all the variables

3/n-30=0

We multiply all the terms by the denominator


-30*n+3=0

We add all the numbers together, and all the variables

-30n+3=0

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

-30n=-3

n=-3/-30

n=1/10

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