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August 22, 2014

Homework Help: cramers rule

Posted by linda on Wednesday, August 8, 2007 at 5:43pm.

Solve the following linear system for x using Cramer’s rule.
Show work.
x + 2y – 3z = -22
2x – 6y + 8z = 74
-x – 2y + 4z = 29


Cramer’s rule uses determinants to find the solution

Set up a 3by3 matrix using the coefficients of the x,y and z, and find its determinant, calling it D.


You can see a good example at
http://www.mathwords.com/c/cramers_rule.htm

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