Question

$\frac{3}{8} x + \frac{6}{7} = 5 - \frac{5}{6} x \\ \\ 21(x - 5) = 2(10 - 7x) \\ \\ \frac{2}{1} (2x + \frac{1}{3} ) = 2 \frac{1}{6} - ( \frac{x}{2} \frac{5}{33}$
3 уравнений даю 25 баллов ​

Answer 1

Ответ:

Пошаговое объяснение:

1.

3/8х + 5/6х = 5 - 6/7

9/24х + 20/24х = 4. 1/7

29/24х = 29/7

х = 29/7 : 29/24

х = 29/7 * 24/29

х = 24/7

х = 3. 3/7

2.

21х - 105 = 20 - 14х

21х + 14х = 20 + 105

35х = 125

х = 125/35

х = 3. 20/35

х = 3. 4/7