Ответ:

Х= 1/7

Пошаговое объяснение:

[tex] \frac{2}{3} \times x = \frac{2}{3} - \frac{4}{7} \\ \frac{2}{3} \times x = \frac{14}{21} - \frac{12}{21} = \frac{2}{21} [/tex]

2/3 * х = 2/21

Х = 2/21 : 2/3

[tex] \frac{2}{21} \div \frac{2}{3} = \frac{2}{21} \times \frac{3}{2} = \frac{3}{21} = \frac{1}{7} [/tex]

Х= 1/7