Solve the system (1001)(xy)=(56)\begin{pmatrix} 1 & 0 \\ 0 & 1 \end{pmatrix} \begin{pmatrix} x \\ y \end{pmatrix} = \begin{pmatrix} 5 \\ 6 \end{pmatrix}(1001)(xy)=(56).
x=5,y=6x=5, y=6x=5,y=6
x=6,y=5x=6, y=5x=6,y=5
x=0,y=0x=0, y=0x=0,y=0
x=1,y=1x=1, y=1x=1,y=1