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

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



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

We move all terms to the left:

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



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

-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+7=0

We add all the numbers together, and all the variables

2w-14=0

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

2w=14

w=14/2

w=7

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