2019-12-05T17:46:11Z https://matematicasies.com/sistemas-ecuaciones-lineal-3x3#comment2335 2019-12-05T17:46:11Z

<p>2×+3y+z=1<br class="autobr"> 6×-2y-z=-14<br class="autobr"> 3×+y-z=1</p>