4/7u=30

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Solution for 4/7u=30 equation: 



4/7u=30

We move all terms to the left:

4/7u-(30)=0



Domain of the equation: 7u!=0

u!=0/7

u!=0

u∈R



We multiply all the terms by the denominator


-30*7u+4=0

Wy multiply elements

-210u+4=0

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

-210u=-4

u=-4/-210

u=2/105

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