20=-(4/9)u

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Solution for 20=-(4/9)u equation: 



20=-(4/9)u

We move all terms to the left:

20-(-(4/9)u)=0



Domain of the equation: 9)u)!=0

u!=0/1

u!=0

u∈R



We add all the numbers together, and all the variables

-(-(+4/9)u)+20=0

We multiply all the terms by the denominator


-(-(+4+20*9)u)=0



We calculate terms in parentheses: -(-(+4+20*9)u), so:

-(+4+20*9)u

We add all the numbers together, and all the variables

-184u

Back to the equation:

-(-184u)



We get rid of parentheses

184u=0

u=0/184

u=0

Równanie nie ma rozwiązania

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