Given the system of equations $$\begin{array}{l} x+y+z = -3, \\ y-3z = 7, \\ 2x+y+5z = -12, \\ \end{array}$$
(a) determine whether the system is inconsistent or dependent;
Your answer is (input inconsistent or dependent)
(b) if your answer is dependent, find the complete solution. Write $x$ and $y$ as functions of $z$. If your answer is inconsistent, enter the phrase "no solution" instead.
$x=$
$y=$