What is the answer to 9/7 = 3/(x+2) ?

The answer to 9/7 = 3/(x+2) is x= 1/3

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

9/7 = 3/(x+2)

\frac{9}{7} = \frac{3}{x + 2}

x = \frac{1}{3}

Decimal Notation

x = 0.33333 \dots

Solution steps

\frac{9}{7} = \frac{3}{x + 2}

Cross multiply

9 (x + 2) = 21

Divide both sides by

9

x + 2 = \frac{7}{3}

Move

2

to the right side

x = \frac{1}{3}

Verify Solutions

Find undefined (singularity) points:

x = - 2

Combine undefined points with solutions:

x = \frac{1}{3}

\frac{a + 4}{3 a} = 7 + \frac{1}{a}

\frac{A x + B}{x} = \frac{C x}{D}

\frac{z + 22}{z} = 12

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

\frac{3}{x} = 8