Ответ:
- \(x=\frac{3}{4}-\frac{7}{12}=\frac{9}{12}-\frac{7}{12}=\frac{1}{6}\).
- \(x=\frac{1}{9}+\frac{1}{6}=\frac{2}{18}+\frac{3}{18}=\frac{5}{18}\).
- \(x=\frac{3}{8}+\frac{3}{5}=\frac{15}{40}+\frac{24}{40}=\frac{39}{40}\).
- \(x=\frac{7}{12}-\frac{5}{24}=\frac{14}{24}-\frac{5}{24}=\frac{3}{8}\).
- \(y=\frac{1}{3}-\frac{2}{7}=\frac{7}{21}-\frac{6}{21}=\frac{1}{21}\).
- \(x=\frac{7}{9}+\frac{1}{6}=\frac{14}{18}+\frac{3}{18}=\frac{17}{18}\).
- \(y=\frac{5}{32}+\frac{3}{8}=\frac{5}{32}+\frac{12}{32}=\frac{17}{32}\).
- \(y=\frac{1}{2}-\frac{2}{5}=\frac{5}{10}-\frac{4}{10}=\frac{1}{10}\).
Ответ: 1) \(x=\frac{1}{6}\); 2) \(x=\frac{5}{18}\); 3) \(x=\frac{39}{40}\); 4) \(x=\frac{3}{8}\); 5) \(y=\frac{1}{21}\); 6) \(x=\frac{17}{18}\); 7) \(y=\frac{17}{32}\); 8) \(y=\frac{1}{10}\).
