40/f=20

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Solution for 40/f=20 equation: 



40/f=20

We move all terms to the left:

40/f-(20)=0



Domain of the equation: f!=0

f∈R



We multiply all the terms by the denominator


-20*f+40=0

We add all the numbers together, and all the variables

-20f+40=0

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

-20f=-40

f=-40/-20

f=+2

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