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-8w+6(w-7)=-28
We move all terms to the left:
-8w+6(w-7)-(-28)=0
We add all the numbers together, and all the variables
-8w+6(w-7)+28=0
We multiply parentheses
-8w+6w-42+28=0
We add all the numbers together, and all the variables
-2w-14=0
We move all terms containing w to the left, all other terms to the right
-2w=14
w=14/-2
w=-7
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