1. Write a matrix to represent the following system.
[tex]\left \{ {{-9x+4y =1} \atop {7x-9=5}} \right.[/tex]
Complete the matrix below.
[ _ _ | _ ]
[ _ _ | _ ]
[ _ _ | _ ]

2. Write a matrix to represent the following system.
[tex]\left \{ {{-5x+6y=1} \atop {5x-2y=9}} \right.[/tex]
Complete the matrix below.
[ _ _ | _ ]
[ _ _ | _ ]
[ _ _ | _ ]