SOLUTION: I've got to use Cramer's rule on this one, and I just don't know how. 2x+z=-10 y-z=15 x-2y+z=-5 I know how to solve 3x3 problems, but I don't know what to do for the missin

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Question 246827: I've got to use Cramer's rule on this one, and I just don't know how.
2x+z=-10
y-z=15
x-2y+z=-5
I know how to solve 3x3 problems, but I don't know what to do for the missing variables in this one. Help!!

Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
The missing variable has a zero multiplier.

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