I'm just beginning linear algebra at university and have a teacher who moves very fast and has pre-done slides so i can't actually see the problem worked out, he just talks it out. On top of this, he's also from China and heavily accented, making him hard to understand.
Anyway, i have an augmented matrix, and i want the values of $h$ that make it consistent:
$$\left[\begin{array}{cc|c} 1 & h & -5 \\ 2 & -8 & 6 \\ \end{array}\right]$$
and quite frankly, i'm not sure just how to start. I tried eliminating the 1 in the second row, but that made the second line $[0\;\;\; h+4\;\; -8]$ and i'm not even sure if that's the right direction or even allowed.
Thanks in advance.