Homework Help: Matrice, solving the system, need to put it in right form!

Hello everyone I had this system:
-2x1 + x2 = 5
6x1 - 3x2 = -15
[tex]\left( {\begin{array}{*{20}c}
{-2} & 1 & 5 \\
6 & -3 & {-15}\\
\end{array} } \right)[/tex]

I then solved it down too:
[tex]\left( {\begin{array}{*{20}c}
{-2} & 1 & 5 \\
0 & 0 & 0\\
\end{array} } \right)[/tex]

It wants me to put it parametric form:
so i did the following:
-2x1 + x2 = 5
2x1 = -5 + x2
x1 = (-5+x2)/2
let x2 = s;
[-5/2] + [1/2] S
[0 ] [0 ]

but its wrong! any ideas? Thanks

 

awsome, thanks again TD!