Ответ:
\( \frac{5}{7} x = 2 \frac{1}{7} \)
\( \frac{5}{7} x = \frac{15}{7} \)
\( x = \frac{15}{7} \cdot \frac{7}{5} = 3 \)
Ответ: 3
\( \frac{5}{7} x = 2 \frac{1}{7} \)
\( \frac{5}{7} x = \frac{15}{7} \)
\( x = \frac{15}{7} \cdot \frac{7}{5} = 3 \)
Ответ: 3