w(-8)=-21

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Solution for w(-8)=-21 equation: 



w(-8)=-21

We move all terms to the left:

w(-8)-(-21)=0

We add all the numbers together, and all the variables

w(-8)+21=0

We multiply parentheses

-8w+21=0

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

-8w=-21

w=-21/-8

w=2+5/8

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