Given the system of equations $$\begin{array}{l} 2x-3y-9z = 11, \\ x+3z = -8, \\ -3x+y-4z = 15, \\ \end{array}$$
(a) determine whether the system is inconsistent or dependent;
Your answer is (input inconsistent or dependent)
(b) if your answer is dependent in (a), find the complete solution. Write $x$ and $y$ as functions of $z$.
$x=$
$y=$