15=3(w+7)

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Solution for 15=3(w+7) equation: 



15=3(w+7)

We move all terms to the left:

15-(3(w+7))=0



We calculate terms in parentheses: -(3(w+7)), so:

3(w+7)

We multiply parentheses

3w+21

Back to the equation:

-(3w+21)



We get rid of parentheses

-3w-21+15=0

We add all the numbers together, and all the variables

-3w-6=0

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

-3w=6

w=6/-3

w=-2

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