Chapter 9.2, Problem 41E

Make Sense? In Exercises 41—44, determine whether each statement makes sense or does not make sense, and explain your reasoning.

I omitted row 3 from $\left[\begin{array}{lll}1\hfill & -\hfill & -2\hfill \\ 0\hfill & 1\hfill & -10\hfill \\ 0\hfill & 0\hfill & 0\hfill \end{array}|\begin{array}{l}2\\ -1\\ 5\end{array}\right]$

and expressed the

System in the from $\left[\begin{array}{lll}1\hfill & -1\hfill & -2\hfill \\ 0\hfill & 1\hfill & -10\hfill \end{array}|\begin{array}{l}2\\ -1\end{array}\right].$