1/2d=9

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Solution for 1/2d=9 equation: 



1/2d=9

We move all terms to the left:

1/2d-(9)=0



Domain of the equation: 2d!=0

d!=0/2

d!=0

d∈R



We multiply all the terms by the denominator


-9*2d+1=0

Wy multiply elements

-18d+1=0

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

-18d=-1

d=-1/-18

d=1/18

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