SOLUTION: Find f-1(x) for f(x) = 2x+1/x-3, where x does not equal 3.

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Question 436181: Find f-1(x) for f(x) = 2x+1/x-3, where x does not equal 3.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find f-1(x) for f(x) = 2x+1/x-3, where x does not equal 3.
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f(x) = (2x+1)/(x-3)
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1st Interchange x and y:
x = (2y+1)/(y-3)
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2nd Solve for "y":
xy-3x = 2y+1
xy-2y = 3x+1
y(x-2) = 3x+1
y = (3x+1)/(x-2)
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Cheers,
Stan H.
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