3w-9=-4(w-3)

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Solution for 3w-9=-4(w-3) equation: 



3w-9=-4(w-3)

We move all terms to the left:

3w-9-(-4(w-3))=0



We calculate terms in parentheses: -(-4(w-3)), so:

-4(w-3)

We multiply parentheses

-4w+12

Back to the equation:

-(-4w+12)



We get rid of parentheses

3w+4w-12-9=0

We add all the numbers together, and all the variables

7w-21=0

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

7w=21

w=21/7

w=3

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