-15=6w+7(w-4)

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Solution for -15=6w+7(w-4) equation: 



-15=6w+7(w-4)

We move all terms to the left:

-15-(6w+7(w-4))=0



We calculate terms in parentheses: -(6w+7(w-4)), so:

6w+7(w-4)

We multiply parentheses

6w+7w-28

We add all the numbers together, and all the variables

13w-28

Back to the equation:

-(13w-28)



We get rid of parentheses

-13w+28-15=0

We add all the numbers together, and all the variables

-13w+13=0

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

-13w=-13

w=-13/-13

w=1

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