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Popular Functions >

inverse of f(x)=(x+20)/x

Solution

inverse

f (x) = \frac{x + 20}{x}

Solution

\frac{20}{x - 1}

Solution steps

y = \frac{x + 20}{x}

Replace

x

with

y

x = \frac{y + 20}{y}

Solve for

y, x = \frac{y + 20}{y}

\frac{20}{x - 1}

Graph

Popular Examples

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Frequently Asked Questions (FAQ)

What is the inverse of f(x)=(x+20)/x ?
The inverse of f(x)=(x+20)/x is (20)/(x-1)