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Popular >

inverse of f(x)=(21-7x)/(4x)

Solution

inverse

f (x) = \frac{21 - 7 x}{4 x}

Solution

\frac{21}{4 x + 7}

Solution steps

y = \frac{21 - 7 x}{4 x}

Replace

x

with

y

x = \frac{21 - 7 y}{4 y}

Solve for

y, x = \frac{21 - 7 y}{4 y}

\frac{21}{4 x + 7}

Popular Examples

inverse of f(x)=x^2-6x+4 inverse

f (x) = x^{2} - 6 x + 4

domain of (10)/(sqrt(1-x/(30)))domain

\frac{10}{1 - \frac{x}{30}}

domain of f(x)=ln(x)+ln(8-x)domain

f (x) = ln (x) + ln (8 - x)

domain of (8+x)/(x+7)domain

\frac{8 + x}{x + 7}

periodicity of f(x)= 1/5 cos(3x)periodicity

f (x) = \frac{1}{5} cos (3 x)

Frequently Asked Questions (FAQ)

What is the inverse of f(x)=(21-7x)/(4x) ?
The inverse of f(x)=(21-7x)/(4x) is (21)/(4x+7)