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8f-(-3)=43
We move all terms to the left:
8f-(-3)-(43)=0
determiningTheFunctionDomain 8f-43-(-3)=0
We add all the numbers together, and all the variables
8f-40=0
We move all terms containing f to the left, all other terms to the right
8f=40
f=40/8
f=5
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