-8=-4/9u

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Solution for -8=-4/9u equation: 



-8=-4/9u

We move all terms to the left:

-8-(-4/9u)=0



Domain of the equation: 9u)!=0

u!=0/1

u!=0

u∈R



We get rid of parentheses

4/9u-8=0

We multiply all the terms by the denominator


-8*9u+4=0

Wy multiply elements

-72u+4=0

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

-72u=-4

u=-4/-72

u=1/18

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