SOLUTION: Let f(x) = {3x - 7}/{x + 1}. Find the inverse f^{-1}(x).

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Question 1028666: Let
f(x) = {3x - 7}/{x + 1}.
Find the inverse f^{-1}(x).
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
f(x) = {3x - 7}/{x + 1}.
Find the inverse f^{-1}(x)
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1st:: Interchange x and y to get:
x = (3y-7)/(y+1)
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2nd: Solve for "y"::
xy + x = 3y-7
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y(x-3) = -x-7
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y = -(x+7)/(x-3)
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Cheers,
Stan H.
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