What is the answer to 4/5 =(12)/x ?

The answer to 4/5 =(12)/x is x=15

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

4/5 =(12)/x

\frac{4}{5} = \frac{12}{x}

x = 15

Solution steps

\frac{4}{5} = \frac{12}{x}

Cross multiply

4 x = 60

Divide both sides by

4

x = 15

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 15

\frac{- 18}{( - 3 ) + 4 x} = 2 (- 4) + 2 x + 4

\frac{1 - 3 x}{4 x - 2} = - \frac{5}{8}

\frac{8}{2 x + 12} = \frac{6}{x + 8}

\frac{1}{x} + \frac{8}{x - 4} = 0

\frac{4}{x} = \frac{8}{5 x} + 4