Ответ:

[tex]10 \frac{7}{24} - x = 3 \frac{1}{6} \\ 10 \frac{7}{24} - 3\frac{1}{6} = x \\ x = 10 \frac{7}{24} - 3 \frac{4}{24} \\ x = 7 \frac{3}{24} \\ x = 7 \frac{1}{8} \\ x = 7.125[/tex]