Question 23
Find all real numbers $x$ and $y$ that satisfy the equations
$$
\begin{aligned}
x^{3}+8 y^{3} & =x+2 y \\
2 x^{2} y+4 x y^{2} & =x+2 y
\end{aligned}
$$
$$
\begin{aligned}
x^{3}+8 y^{3} & =x+2 y \\
2 x^{2} y+4 x y^{2} & =x+2 y
\end{aligned}
$$