2006-11-21T16:01:37Z https://www.matematicasies.com/sistema-3x3-gauss,519#comment41 2006-11-21T16:01:37Z

<p> </p><p class="spip" style="text-align:center;"><img src='https://www.matematicasies.com/local/cache-TeX/136f454fab7e11c94194c30e80f96952.png' style="vertical-align:middle;" width="200" height="38" alt="x=-1, \: y=1, \: z=-2" title="x=-1, \: y=1, \: z=-2"></p>