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-7w+9=6(w+8)
We move all terms to the left:
-7w+9-(6(w+8))=0
We calculate terms in parentheses: -(6(w+8)), so:We get rid of parentheses
6(w+8)
We multiply parentheses
6w+48
Back to the equation:
-(6w+48)
-7w-6w-48+9=0
We add all the numbers together, and all the variables
-13w-39=0
We move all terms containing w to the left, all other terms to the right
-13w=39
w=39/-13
w=-3
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