Solve for $x$ and $y$ $\begin{bmatrix} 3 & \quad -4 \\ 1 & \quad 2 \end{bmatrix} \begin{bmatrix} x \\ y \end{bmatrix} = \begin{bmatrix} 3 \\ 11 \end{bmatrix} $

Question

$\begin{array}{1 1} x = 15,y = 3 \\ x = 5,y = 3 \\ x = -5,y = -3 \\ x = 5,y = 0 \end{array} $