Question

Escalone:

x+2y+4z=0
2x+3y-z=0
x-14z=0

Answer 1

{x + 2y + 4z = 0
{2x + 3y - z = 0
{x - 14z = 0
=============
{x + 2y + 4z = 0 . (-2)
{2x + 3y - z = 0
-------------------------
-y -9z = 0

{x + 2y + 4z = 0
{x - 14z = 0 . (-1)
---------------------
2y + 18z = 0

{-y - 9z = 0 . (2)
{2y + 18z = 0
---------------------
0z = 0



O sistema escalonado fica:


{x + 2y + 4z = 0
{....-y - 9z = 0
{.........0z = 0