Решим уравнение:
а) \(x - \frac{7}{13} = \frac{2}{13}\)
\(x = \frac{2}{13} + \frac{7}{13}\)
\(x = \frac{9}{13}\)
б) \(\frac{13}{17} - y = \frac{3}{17}\)
\(y = \frac{13}{17} - \frac{3}{17}\)
\(y = \frac{10}{17}\)
в) \(z + \frac{7}{21} = \frac{13}{21}\)
\(z = \frac{13}{21} - \frac{7}{21}\)
\(z = \frac{6}{21} = \frac{2}{7}\)
Ответ:
а) \(x = \frac{9}{13}\)
б) \(y = \frac{10}{17}\)
в) \(z = \frac{2}{7}\)