-9w-13=-4(w+7)

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Solution for -9w-13=-4(w+7) equation: 



-9w-13=-4(w+7)

We move all terms to the left:

-9w-13-(-4(w+7))=0



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

-4(w+7)

We multiply parentheses

-4w-28

Back to the equation:

-(-4w-28)



We get rid of parentheses

-9w+4w+28-13=0

We add all the numbers together, and all the variables

-5w+15=0

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

-5w=-15

w=-15/-5

w=+3

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