15=2w+7(w-3)

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Solution for 15=2w+7(w-3) equation: 



15=2w+7(w-3)

We move all terms to the left:

15-(2w+7(w-3))=0



We calculate terms in parentheses: -(2w+7(w-3)), so:

2w+7(w-3)

We multiply parentheses

2w+7w-21

We add all the numbers together, and all the variables

9w-21

Back to the equation:

-(9w-21)



We get rid of parentheses

-9w+21+15=0

We add all the numbers together, and all the variables

-9w+36=0

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

-9w=-36

w=-36/-9

w=+4

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