-18=6/7u

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Solution for -18=6/7u equation: 



-18=6/7u

We move all terms to the left:

-18-(6/7u)=0



Domain of the equation: 7u)!=0

u!=0/1

u!=0

u∈R



We add all the numbers together, and all the variables

-(+6/7u)-18=0

We get rid of parentheses

-6/7u-18=0

We multiply all the terms by the denominator


-18*7u-6=0

Wy multiply elements

-126u-6=0

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

-126u=6

u=6/-126

u=-1/21

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