Cramer's Rule

[rock.freak667]

Is there any simpler proof for Cramer's rule because I've been trying to understand it from this site and some of it I just don't get

http://planetmath.org/encyclopedia/ProofOfCramersRule.html [Broken]

 

[robphy]

http://www.math.psu.edu/levi/231H/cramer.pdf [Broken]

 

[rock.freak667]

Well thanks, that kind of helps me a little