What is the answer to x-4=(12)/x ?

The answer to x-4=(12)/x is x=6,x=-2

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x-4=(12)/x

x - 4 = \frac{12}{x}

x = 6, x = - 2

Solution steps

x - 4 = \frac{12}{x}

Multiply both sides by

x

x^{2} - 4 x = 12

Solve

x^{2} - 4 x = 12 : x = 6, x = - 2

x = 6, x = - 2

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 6, x = - 2

\frac{7}{4 x - 3} = \frac{2}{x + 1}

c, M = \frac{g - f}{c} g

\frac{4}{x} + 2 = 2 x

x, f = \frac{x + y}{x - y}

y, x = \frac{- 2 y}{y - 1}