\(\boxed{\text{400.}\text{\ }\text{ОК\ ГДЗ\ -\ домашка\ на\ 5}}\)
\[\left\{ \begin{matrix} x^{2} + y^{2} = 9\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ (x - 10)^{2} + y^{2} = 16 \\ \end{matrix} \right.\ \]
\[Нет\ решений.\]