20=-7w+4(w+8)

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Solution for 20=-7w+4(w+8) equation: 



20=-7w+4(w+8)

We move all terms to the left:

20-(-7w+4(w+8))=0



We calculate terms in parentheses: -(-7w+4(w+8)), so:

-7w+4(w+8)

We multiply parentheses

-7w+4w+32

We add all the numbers together, and all the variables

-3w+32

Back to the equation:

-(-3w+32)



We get rid of parentheses

3w-32+20=0

We add all the numbers together, and all the variables

3w-12=0

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

3w=12

w=12/3

w=4

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