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August 14th, 2018, 10:12 PM  #1 
Senior Member Joined: Jan 2012 Posts: 745 Thanks: 7  matrix method for simultaneous equations
I have used matrix method of solving simultaneous equation on these x + y + z = 5 2x  y + 3z = 16 3x + 2y  z = 3. All the results I get when substituted into the original equation does not tarry with what is on ground, until I used the old traditional method and got x = 9, y = 2, z = 12, and substituted the values to the original equations and it worked. Now my take is that you cannot use matrix method or Cramer rule to solve the equation. If I am lying, prove me wrong. Am ready to learn maybe if I missed something along the line when solving. Last edited by skipjack; August 15th, 2018 at 01:26 AM. 
August 15th, 2018, 12:44 AM  #3  
Math Team Joined: May 2013 From: The Astral plane Posts: 2,304 Thanks: 961 Math Focus: Wibbly wobbly timeywimey stuff.  Quote:
Dan Last edited by skipjack; August 15th, 2018 at 01:30 AM.  
August 15th, 2018, 01:25 AM  #4 
Global Moderator Joined: Dec 2006 Posts: 21,028 Thanks: 2259  

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equation, equations, matrix, method, simultaneous 
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