-3=12/f

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Solution for -3=12/f equation: 



-3=12/f

We move all terms to the left:

-3-(12/f)=0



Domain of the equation: f)!=0

f!=0/1

f!=0

f∈R



We add all the numbers together, and all the variables

-(+12/f)-3=0

We get rid of parentheses

-12/f-3=0

We multiply all the terms by the denominator


-3*f-12=0

We add all the numbers together, and all the variables

-3f-12=0

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

-3f=12

f=12/-3

f=-4

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