Homework Help: Algebra

Posted by mike on Thursday, December 17, 2009 at 8:00pm.

2x+4z=-8

3x+y+5z=2

-x+y-2z=4

I need to solve each system of equations by using the inverse of the coefficient matrix. Are these the correct answers. Thank you

x=24
z=-14
y=0

Algebra - Marth, Thursday, December 17, 2009 at 8:02pm
You can check your answers by plugging those values for x, y, and z into each equation to determine if they work.

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