-2/7d=4

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Solution for -2/7d=4 equation: 



-2/7d=4

We move all terms to the left:

-2/7d-(4)=0



Domain of the equation: 7d!=0

d!=0/7

d!=0

d∈R



We multiply all the terms by the denominator


-4*7d-2=0

Wy multiply elements

-28d-2=0

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

-28d=2

d=2/-28

d=-1/14

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