-20=-4/9w

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Solution for -20=-4/9w equation: 



-20=-4/9w

We move all terms to the left:

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



Domain of the equation: 9w)!=0

w!=0/1

w!=0

w∈R



We get rid of parentheses

4/9w-20=0

We multiply all the terms by the denominator


-20*9w+4=0

Wy multiply elements

-180w+4=0

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

-180w=-4

w=-4/-180

w=1/45

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