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Follow this example.

f(x) = (x+3)/5

To find its inverse, write y=f(x)

y= (x+3)/5

Interchange x and y

x = (y+3)/5

solve for y in terms of x

5x=y+3

y=5x-3

The inverse of f(x) is f^-1(x) = 5x-3

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Q: How do you complete the inverse of fx?
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