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-7w+5(w-2)=4
We move all terms to the left:
-7w+5(w-2)-(4)=0
We multiply parentheses
-7w+5w-10-4=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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