Use matrices to solve the system of linear equations, if possible. Use Gauss-Jordan elimination. (If not possible, enter

Question

Use matrices to solve the system of linear equations, if possible. Use Gauss-Jordan elimination. (If not possible, enter IMPOSSIBLE. If the system is dependent, express x and y in terms of the parameter a.)
(2x
(2xy + 3z = 19
z
18
=8
2y
7x - 5y
(x, y, z) = (

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