Question

Помогите решить уравнение.

Answer 1

Ответ:

Пошаговое объяснение:

6 : (2х + 1) = 8 : 7

6 : (2х + 1) = 8/7

2х + 1 = 6 : 8/7

2х + 1 = 6 * 7/8

2х + 1 = 42/8

2х + 1 = 5. 2/8

2х + 1 = 5. 1/4

2х = 5. 1/4 - 1

2х = 4. 1/4

х = 4. 1/4 : 2

х = 17/4 * 1/2

х = 17/8

х = 2. 1/8

Answer 2

$6 \div (2x + 1) = 8 \div 7$

$6 \div (2x - 1) = \frac{8}{7}$

$2x + 1 = 6 \div \frac{8}{7}$

$2x + 1 = 6 \times \frac{7}{8}$

$2x + 1 = \frac{42}{8}$

$2x + 1 = 5 \frac{2}{8}$

$2x + 1 = 5 \frac{1}{4}$

$2x = 5 \frac{1}{4} - 1$

$2x = 4 \frac{1}{4}$

$x = 4 \frac{1}{4} \div 2$

$x = \frac{17}{4} \times \frac{1}{2}$

$x = \frac{17}{8}$

$x = 2 \frac{1}{8}$