18=3/7u

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Solution for 18=3/7u equation: 



18=3/7u

We move all terms to the left:

18-(3/7u)=0



Domain of the equation: 7u)!=0

u!=0/1

u!=0

u∈R



We add all the numbers together, and all the variables

-(+3/7u)+18=0

We get rid of parentheses

-3/7u+18=0

We multiply all the terms by the denominator


18*7u-3=0

Wy multiply elements

126u-3=0

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

126u=3

u=3/126

u=1/42

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