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September 20, 2014

September 20, 2014

Posted by **CHRYSTABELLE** on Thursday, July 28, 2011 at 9:18am.

3x+2y-z = 0

2x-y+z = 1

x-y+2y= -1

- maths -
**drwls**, Thursday, July 28, 2011 at 9:51amCramer's rule is well explained here:

http://www.purplemath.com/modules/cramers.htm

You will need to calculate the determinants of four 3x3 matrices. I assume you know how to do that. If not, it's high time to learn how.

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