-84=-8w-4w

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Solution for -84=-8w-4w equation: 



-84=-8w-4w

We move all terms to the left:

-84-(-8w-4w)=0

We add all the numbers together, and all the variables

-(-12w)-84=0

We get rid of parentheses

12w-84=0

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

12w=84

w=84/12

w=7

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