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-7w+4(w-7)=2
We move all terms to the left:
-7w+4(w-7)-(2)=0
We multiply parentheses
-7w+4w-28-2=0
We add all the numbers together, and all the variables
-3w-30=0
We move all terms containing w to the left, all other terms to the right
-3w=30
w=30/-3
w=-10
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