Chapter 1.1, Problem 18E

In Exercises 16-18, determine whether the given $\left(2\times 3\right)$ system of linear equations represents coincident planes (that is, the same plane), two parallel planes, or two planes whose intersection is a line. In the latter case, give the parametric equations for the line; that is, give equations of the form $x=at+b$, $y=ct+d$, $z=et+f$.

$\begin{array}{rll}{x}_1+3x_2-2x_3& =& -1\\ 2x_1+6x_2-4x_3& =& -2\end{array}$