Question 371319
Well you have to give us the system so we can help.



However, in general...



i) Check out this <a href="http://www.algebra.com/algebra/homework/Matrices-and-determiminant/cramers-rule-3x3.solver">Cramer's Rule Solver</a> for help using Cramer's Rule.



ii) Check out the <a href="http://www.math.odu.edu/~bogacki/lat/">Linear Algebra Toolkit</a> for help with matrix inverses.