-2=-9+-21/w

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Solution for -2=-9+-21/w equation: 



-2=-9+-21/w

We move all terms to the left:

-2-(-9+-21/w)=0



Domain of the equation: w)!=0

w!=0/1

w!=0

w∈R



We add all the numbers together, and all the variables

-(-21/w)-2=0

We get rid of parentheses

21/w-2=0

We multiply all the terms by the denominator


-2*w+21=0

We add all the numbers together, and all the variables

-2w+21=0

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

-2w=-21

w=-21/-2

w=10+1/2

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