Question

Which matrix equation is equivalent to

3x+2y-5z=20
5x-10y+8z=17
-8+11y-2z=29

Answer 1

|+3 +2 -5 | |x| |20|
|+5 -10 8 |*|y|=|17|
|-8 +11 -2| |z| |29|

to solve:
http://www.gregthatcher.com/Mathematics/GaussJordan.aspx