31=7(w+42)-(-17)

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Solution for 31=7(w+42)-(-17) equation: 



31=7(w+42)-(-17)

We move all terms to the left:

31-(7(w+42)-(-17))=0



We calculate terms in parentheses: -(7(w+42)-(-17)), so:

7(w+42)-(-17)

We add all the numbers together, and all the variables

7(w+42)+17

We multiply parentheses

7w+294+17

We add all the numbers together, and all the variables

7w+311

Back to the equation:

-(7w+311)



We get rid of parentheses

-7w-311+31=0

We add all the numbers together, and all the variables

-7w-280=0

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

-7w=280

w=280/-7

w=-40

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