9=9(w-9)

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Solution for 9=9(w-9) equation: 



9=9(w-9)

We move all terms to the left:

9-(9(w-9))=0



We calculate terms in parentheses: -(9(w-9)), so:

9(w-9)

We multiply parentheses

9w-81

Back to the equation:

-(9w-81)



We get rid of parentheses

-9w+81+9=0

We add all the numbers together, and all the variables

-9w+90=0

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

-9w=-90

w=-90/-9

w=+10

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