What is the answer to 1/(x+1)-2/(x-2)=0 ?

The answer to 1/(x+1)-2/(x-2)=0 is x=-4

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

1/(x+1)-2/(x-2)=0

\frac{1}{x + 1} - \frac{2}{x - 2} = 0

x = - 4

Solution steps

\frac{1}{x + 1} - \frac{2}{x - 2} = 0

Multiply by LCM

x - 2 - 2 (x + 1) = 0

Move

2

to the right side

x - 2 (x + 1) = 2

Expand

- 2 (x + 1) : - 2 x - 2

x - 2 x - 2 = 2

Add similar elements:

x - 2 x = - x

- x - 2 = 2

Move

2

to the right side

- x = 4

Divide both sides by

- 1

x = - 4

Verify Solutions

Find undefined (singularity) points:

x = - 1, x = 2

Combine undefined points with solutions:

x = - 4

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

\frac{2 x + 5}{9 x} = x

\frac{3}{4.5} = \frac{12}{d}

4 = \frac{2 π}{b}

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

What is the answer to 1/(x+1)-2/(x-2)=0 ?
The answer to 1/(x+1)-2/(x-2)=0 is x=-4
Solve for x: 1/(x+1)-2/(x-2)=0
The solution is x=-4