15=3(w+7)-5w

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Solution for 15=3(w+7)-5w equation: 



15=3(w+7)-5w

We move all terms to the left:

15-(3(w+7)-5w)=0



We calculate terms in parentheses: -(3(w+7)-5w), so:

3(w+7)-5w

We add all the numbers together, and all the variables

-5w+3(w+7)

We multiply parentheses

-5w+3w+21

We add all the numbers together, and all the variables

-2w+21

Back to the equation:

-(-2w+21)



We get rid of parentheses

2w-21+15=0

We add all the numbers together, and all the variables

2w-6=0

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

2w=6

w=6/2

w=3

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