-4/f=-2

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Solution for -4/f=-2 equation: 



-4/f=-2

We move all terms to the left:

-4/f-(-2)=0



Domain of the equation: f!=0

f∈R



We add all the numbers together, and all the variables

-4/f+2=0

We multiply all the terms by the denominator


2*f-4=0

We add all the numbers together, and all the variables

2f-4=0

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

2f=4

f=4/2

f=2

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