What is the answer to (x+3)/(x+2)= 4/5 ?

The answer to (x+3)/(x+2)= 4/5 is x=-7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

(x+3)/(x+2)= 4/5

\frac{x + 3}{x + 2} = \frac{4}{5}

x = - 7

Solution steps

\frac{x + 3}{x + 2} = \frac{4}{5}

Cross multiply

5 x + 15 = 4 x + 8

Move

15

to the right side

5 x = 4 x - 7

Move

4 x

to the left side

x = - 7

Verify Solutions

Find undefined (singularity) points:

x = - 2

Combine undefined points with solutions:

x = - 7

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

\frac{1}{x} = 5 + \frac{1}{x ^{2} + x}

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

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

- \frac{5}{( x - 5 ) ^{2}} = - 1.25