Quadratic Simultaneous Equations by Boxed Rockets

\begin{matrix} y = 3 x^{2} - 6 x + 7 \\ y = 3 x + 8 \end{matrix}

\begin{matrix} x = 3.11 or -0.107 \\ y = 17.33 or 7.679 \end{matrix}

\begin{matrix} y = 3 x^{2} - 10 x - 8 \\ y = x + 6 \end{matrix}

\begin{matrix} x = 4.67 or -1 \\ y = 10.67 or 5 \end{matrix}

\begin{matrix} y = 3 x^{2} + x - 9 \\ y = x - 1 \end{matrix}

\begin{matrix} x = 1.63 or -1.63 \\ y = 0.63 or -2.63 \end{matrix}

\begin{matrix} y = 2 x^{2} + 15 x + 4 \\ y = 2 x - 4 \end{matrix}

\begin{matrix} x = -0.688 or -5.81 \\ y = -5.376 or -15.62 \end{matrix}

\begin{matrix} y = x^{2} + x + 7 \\ y = x + 8 \end{matrix}

\begin{matrix} x = 1 or -1 \\ y = 9 or 7 \end{matrix}

\begin{matrix} y = 2 x^{2} + 13 x + 10 \\ y = 2 x - 2 \end{matrix}

\begin{matrix} x = -1.5 or -4 \\ y = -5 or -10 \end{matrix}