3/7e=21

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Solution for 3/7e=21 equation: 



3/7e=21

We move all terms to the left:

3/7e-(21)=0



Domain of the equation: 7e!=0

e!=0/7

e!=0

e∈R



We multiply all the terms by the denominator


-21*7e+3=0

Wy multiply elements

-147e+3=0

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

-147e=-3

e=-3/-147

e=1/49

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