31=-7w+4(w+4)

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Solution for 31=-7w+4(w+4) equation: 



31=-7w+4(w+4)

We move all terms to the left:

31-(-7w+4(w+4))=0



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

-7w+4(w+4)

We multiply parentheses

-7w+4w+16

We add all the numbers together, and all the variables

-3w+16

Back to the equation:

-(-3w+16)



We get rid of parentheses

3w-16+31=0

We add all the numbers together, and all the variables

3w+15=0

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

3w=-15

w=-15/3

w=-5

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