-1/7d+4=7

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Solution for -1/7d+4=7 equation: 



-1/7d+4=7

We move all terms to the left:

-1/7d+4-(7)=0



Domain of the equation: 7d!=0

d!=0/7

d!=0

d∈R



We add all the numbers together, and all the variables

-1/7d-3=0

We multiply all the terms by the denominator


-3*7d-1=0

Wy multiply elements

-21d-1=0

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

-21d=1

d=1/-21

d=-1/21

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