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-34=-4w+7(w-7)
We move all terms to the left:
-34-(-4w+7(w-7))=0
We calculate terms in parentheses: -(-4w+7(w-7)), so:We get rid of parentheses
-4w+7(w-7)
We multiply parentheses
-4w+7w-49
We add all the numbers together, and all the variables
3w-49
Back to the equation:
-(3w-49)
-3w+49-34=0
We add all the numbers together, and all the variables
-3w+15=0
We move all terms containing w to the left, all other terms to the right
-3w=-15
w=-15/-3
w=+5
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