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4w-28=-4(w+3)
We move all terms to the left:
4w-28-(-4(w+3))=0
We calculate terms in parentheses: -(-4(w+3)), so:We get rid of parentheses
-4(w+3)
We multiply parentheses
-4w-12
Back to the equation:
-(-4w-12)
4w+4w+12-28=0
We add all the numbers together, and all the variables
8w-16=0
We move all terms containing w to the left, all other terms to the right
8w=16
w=16/8
w=2
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