Parametric Vector Form

1. Feb 1, 2010

Precursor

The problem statement, all variables and given/known data

Describe the solution(s) of the system Ax=b in parametric vector form where A =
$$0....-2....9....5$$
$$0....1....2....-6$$

and b =
$$0$$
$$0$$

The attempt at a solution
I got this far:

$$1....0....13....7....0$$
$$0....1....2....-6....0$$

How do I continue to get it into parametric vector form? I only have two leading ones, so does it look like I'll be getting some free variables?

Last edited: Feb 1, 2010
2. Feb 1, 2010

Precursor

Any suggestions?

3. Feb 2, 2010

Precursor

Is my work confusing?