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August 2, 2015

Homework Help: Algebra Question

Posted by mike on Friday, December 18, 2009 at 6:40am.

What am I doing wrong I am using the Gauss Jordan method to calculate this answer and some other students are coming up with differant answers.
Problem is
3x+y+z=5,
x+5y-z=-8,
10x+7y+z=2

My answer is (-6z+3,7z-4
_________, z
( 11 11)
Where I have +3 they have +33 and where I have -4 they have -44 Can you let me know how they came up with the larger numbers

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