1/2f=9

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Solution for 1/2f=9 equation: 



1/2f=9

We move all terms to the left:

1/2f-(9)=0



Domain of the equation: 2f!=0

f!=0/2

f!=0

f∈R



We multiply all the terms by the denominator


-9*2f+1=0

Wy multiply elements

-18f+1=0

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

-18f=-1

f=-1/-18

f=1/18

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