1. Gpt: $\left\{\begin{matrix} \sqrt{2x-3}+\sqrt{4-y}=4 & \\ \sqrt{2y-3}+\sqrt{4-x}=4 & \end{matrix}\right.$
2. Gpt: $\left\{\begin{matrix} 3x=\frac{x^{2}+2}{y^{2}} & \\ 3y=\frac{y^{2}+2}{x^{2}} & \end{matrix}\right.$
3. Gpt: $\left\{\begin{matrix} 2+3x=\frac{8}{y^{3}} & \\ x^{3}-2=\frac{6}{y} & \end{matrix}\right.$