What is the answer to 9/x =x ?

The answer to 9/x =x is x=3,x=-3

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9/x =x

\frac{9}{x} = x

x = 3, x = - 3

Solution steps

\frac{9}{x} = x

Multiply both sides by

x

9 = x^{2}

Solve

9 = x^{2} : x = 3, x = - 3

x = 3, x = - 3

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 3, x = - 3

\frac{3 x}{8 + 4 x} = \frac{x - 2}{x}

x + \frac{1}{x} = 5

\frac{3}{8} = \frac{15}{a}

\frac{7}{b + 5} = \frac{10}{5}

a, u = \frac{k}{a}