28/d=4

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Solution for 28/d=4 equation: 



28/d=4

We move all terms to the left:

28/d-(4)=0



Domain of the equation: d!=0

d∈R



We multiply all the terms by the denominator


-4*d+28=0

We add all the numbers together, and all the variables

-4d+28=0

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

-4d=-28

d=-28/-4

d=+7

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