-12=7(w-4)-3w

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Solution for -12=7(w-4)-3w equation: 



-12=7(w-4)-3w

We move all terms to the left:

-12-(7(w-4)-3w)=0



We calculate terms in parentheses: -(7(w-4)-3w), so:

7(w-4)-3w

We add all the numbers together, and all the variables

-3w+7(w-4)

We multiply parentheses

-3w+7w-28

We add all the numbers together, and all the variables

4w-28

Back to the equation:

-(4w-28)



We get rid of parentheses

-4w+28-12=0

We add all the numbers together, and all the variables

-4w+16=0

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

-4w=-16

w=-16/-4

w=+4

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