30-w-3w=-2(w-7)

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Solution for 30-w-3w=-2(w-7) equation: 



30-w-3w=-2(w-7)

We move all terms to the left:

30-w-3w-(-2(w-7))=0

We add all the numbers together, and all the variables

-4w-(-2(w-7))+30=0



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

-2(w-7)

We multiply parentheses

-2w+14

Back to the equation:

-(-2w+14)



We get rid of parentheses

-4w+2w-14+30=0

We add all the numbers together, and all the variables

-2w+16=0

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

-2w=-16

w=-16/-2

w=+8

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