20=-8w+4(w+8)

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Solution for 20=-8w+4(w+8) equation: 



20=-8w+4(w+8)

We move all terms to the left:

20-(-8w+4(w+8))=0



We calculate terms in parentheses: -(-8w+4(w+8)), so:

-8w+4(w+8)

We multiply parentheses

-8w+4w+32

We add all the numbers together, and all the variables

-4w+32

Back to the equation:

-(-4w+32)



We get rid of parentheses

4w-32+20=0

We add all the numbers together, and all the variables

4w-12=0

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

4w=12

w=12/4

w=3

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