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Popular >

inverse of (x-9)/(21-4x)

Solution

inverse

\frac{x - 9}{21 - 4 x}

Solution

- \frac{- 9 - 21 x}{1 + 4 x}

Solution steps

y = \frac{x - 9}{21 - 4 x}

Replace

x

with

y

x = \frac{y - 9}{21 - 4 y}

Solve for

y, x = \frac{y - 9}{21 - 4 y}

- \frac{- 9 - 21 x}{1 + 4 x}

Graph

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Frequently Asked Questions (FAQ)

What is the inverse of (x-9)/(21-4x) ?
The inverse of (x-9)/(21-4x) is -(-9-21x)/(1+4x)