\left[\begin{array}{cccc|c}
1 & 1 & 0 & \lambda & 1 \\
\lambda + 1 & 0 & 1 & \lambda & 2 \\
1 & 0 & 0 & -1 & 0
\end{array}\right] \sim \left[\begin{array}{cccc|c}
0 & 1 & 0 & \lambda + 1 & 1 \\
0 & 0 & 1 & 2 \lambda + 1 & 2 \\
1 & 0 & 0 & -1 & 0
\end{array}\right]