15=-5(3+w)

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Solution for 15=-5(3+w) equation: 



15=-5(3+w)

We move all terms to the left:

15-(-5(3+w))=0

We add all the numbers together, and all the variables

-(-5(w+3))+15=0



We calculate terms in parentheses: -(-5(w+3)), so:

-5(w+3)

We multiply parentheses

-5w-15

Back to the equation:

-(-5w-15)



We get rid of parentheses

5w+15+15=0

We add all the numbers together, and all the variables

5w+30=0

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

5w=-30

w=-30/5

w=-6

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