What is the answer to x-(18)/x =7 ?

The answer to x-(18)/x =7 is x=9,x=-2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x-(18)/x =7

x - \frac{18}{x} = 7

x = 9, x = - 2

Solution steps

x - \frac{18}{x} = 7

Multiply both sides by

x

x^{2} - 18 = 7 x

Solve

x^{2} - 18 = 7 x : x = 9, x = - 2

x = 9, x = - 2

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 9, x = - 2

0 = \frac{36 - x ^{2}}{x ^{2} + 6 x}

\frac{1}{100} = (\frac{5 - x}{x}) 1

\frac{x}{1 - x} = 0

\frac{x}{1 - x} = 4

x, y = \frac{7}{9 - x}