Example NRREF A matrix not in reduced row-echelon form

The matrix $E$ is not in reduced row-echelon form, as it fails each of the four requirements once. \begin{align*} E&= \begin{bmatrix} 1&0&-3&0&6&0&7&-5&9\\ 0&0&0&5&0&1&0&3&-7\\ 0&0&0&0&0&0&0&0&0\\ 0&1&0&0&0&0&0&-4&2\\ 0&0&0&0&0&0&1&7&3\\ 0&0&0&0&0&0&0&0&0 \end{bmatrix} \end{align*}