Question

ПОМОГИТЕ СО 2) И 3) ПОЖАЛУЙСТА!!​

Answer 1

Пошаговое объяснение:

$- x = \frac{5}{29} - \frac{20}{29} - \frac{12}{29}$

$- x = - \frac{27}{29}$

$x = \frac{27}{29}$

$- \frac{x}{34} = \frac{12}{34} - \frac{29}{34}$

$- \frac{x}{34 } = - \frac{17}{34}$

$x = 17$

Answer 2

Ответ:

2. х = 27/29

3. х = 17

Пошаговое объяснение:

2. 20/29 - (х - 12/29) = 5/29

20/29 - х + 12/29 = 5/29

32/29 - х = 5/29

х = 32/29 - 5/29

х = 27/29

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20/29 - (27/29 - 12/29) = 5/29

20/29 - 15/29 = 5/29

5/29 = 5/29 - верно

3. 29/34 - х/34 = 12/34

х/34 = 29/34 - 12/34

х/34 = 17/34

х = 17/34 * 34

х = 17

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29/34 - 17/34 = 12/34

12/34 = 12/34 - верно