What is the answer to 1/x+3/x =4 ?

The answer to 1/x+3/x =4 is x=1

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

1/x+3/x =4

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

x = 1

Solution steps

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

Multiply both sides by

x

4 = 4 x

Switch sides

4 x = 4

Divide both sides by

4

x = 1

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 1

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

\frac{( - 2 x ^{2} + 5 x - 1 )}{2 x - 1} = 0

16 x^{- 4} - 17 x^{- 2} + 1 = 0

\frac{7}{x} = \frac{20}{5}

\frac{x}{x + 4} + 1 = \frac{16}{x + 4}