\(\left\{\begin{matrix} \frac{-x}{3}=\frac{y}{8} & & \\x-y=22 & & \end{matrix}\right. \Leftrightarrow \left\{\begin{matrix} -8x-3y=0 & & \\x-y=22 & & \end{matrix}\right. \)
\(\Leftrightarrow \left\{\begin{matrix} -8x-3y=0 & & \\ 8x-8y=176 & & \end{matrix}\right. \Leftrightarrow \left\{\begin{matrix} -11y=176 & & \\ -8x-3y=0 & & \end{matrix}\right. \)
\(\Leftrightarrow \left\{\begin{matrix} y=-16 & & \\ -8x-3(-16)=0 & & \end{matrix}\right. \Leftrightarrow \left\{\begin{matrix} y=-16 & & \\ x=6 & & \end{matrix}\right.\)
Vậy x=6 và y=-16