\[\left\{ \begin{matrix}3x - 2y = 6\ \ \ | \cdot 4 \\12x - 8y = 20\ \ \ \ \ \ \\\end{matrix} \right.\ \Longrightarrow \left\{ \begin{matrix}12x - 8y = 24 \\12x - 8y = 20 \\\end{matrix} \right.\ \]
\[Ответ:нет\ решений.\ \]