What is the answer to (3-K)/8 =(2K+1)/5 ?

The answer to (3-K)/8 =(2K+1)/5 is K= 1/3

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

(3-K)/8 =(2K+1)/5

\frac{3 - K}{8} = \frac{2 K + 1}{5}

K = \frac{1}{3}

Decimal Notation

K = 0.33333 \dots

Solution steps

\frac{3 - K}{8} = \frac{2 K + 1}{5}

Apply fraction cross multiply: if

\frac{a}{b} = \frac{c}{d}

then

a \cdot d = b \cdot c

(3 - K) \cdot 5 = 8 (2 K + 1)

Expand

(3 - K) \cdot 5 : 15 - 5 K

Expand

8 (2 K + 1) : 16 K + 8

15 - 5 K = 16 K + 8

Move

15

to the right side

- 5 K = 16 K - 7

Move

16 K

to the left side

- 21 K = - 7

Divide both sides by

- 21

K = \frac{1}{3}

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

0.68 \cdot 1.8 x = 7.3 x - 2.13

x, - 4 x - 2 y = 6

t - 10 = 3

v, v (j + y) = 61 y + 82

What is the answer to (3-K)/8 =(2K+1)/5 ?
The answer to (3-K)/8 =(2K+1)/5 is K= 1/3
Solve for K: (3-K)/8 =(2K+1)/5
The solution is K= 1/3