What is the answer to 2x+4=(20)/x-2 ?

The answer to 2x+4=(20)/x-2 is x=2,x=-5

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

2x+4=(20)/x-2

2 x + 4 = \frac{20}{x} - 2

x = 2, x = - 5

Solution steps

2 x + 4 = \frac{20}{x} - 2

Move

4

to the right side

2 x = \frac{20}{x} - 6

Multiply both sides by

x

2 x^{2} = 20 - 6 x

Solve

2 x^{2} = 20 - 6 x : x = 2, x = - 5

x = 2, x = - 5

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 2, x = - 5

\frac{4}{x + 3} - \frac{3}{x - 3} = \frac{7}{3}

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

y^{9} \times (y^{2})^{- 1} y = - 2

q, 4 q + 80 = 2 q + 80 + \frac{3200}{q}

\frac{60}{( - x )} = 4