-7w+42=-4(w-9)

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Solution for -7w+42=-4(w-9) equation: 



-7w+42=-4(w-9)

We move all terms to the left:

-7w+42-(-4(w-9))=0



We calculate terms in parentheses: -(-4(w-9)), so:

-4(w-9)

We multiply parentheses

-4w+36

Back to the equation:

-(-4w+36)



We get rid of parentheses

-7w+4w-36+42=0

We add all the numbers together, and all the variables

-3w+6=0

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

-3w=-6

w=-6/-3

w=+2

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