What is the answer to 5= 2/5-8/x ?

The answer to 5= 2/5-8/x is x=-40/23

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

5= 2/5-8/x

5 = \frac{2}{5} - \frac{8}{x}

x = - \frac{40}{23}

Decimal Notation

x = - 1.73913 \dots

Solution steps

5 = \frac{2}{5} - \frac{8}{x}

Multiply by LCM

25 x = 2 x - 40

Move

2 x

to the left side

23 x = - 40

Divide both sides by

23

x = - \frac{40}{23}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = - \frac{40}{23}

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

5 = \frac{2}{5} - \frac{8}{c}

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

4 - 3 x = \frac{1}{x}

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