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-w-4/2=7
We move all terms to the left:
-w-4/2-(7)=0
determiningTheFunctionDomain -w-7-4/2=0
We add all the numbers together, and all the variables
-1w-9=0
We move all terms containing w to the left, all other terms to the right
-w=9
w=9/-1
w=-9
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