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May 22, 2015

Homework Help: Math

Posted by Lynn on Wednesday, April 23, 2008 at 8:18pm.

I cannot come up with the right answers for my matrix.

I need to write as a system of equation and solve the system.
1 2 3 x 1
1 1 1 y = 12
-1 1 2 z 2

The answers I come up with are
31
15
15
when I check these, they will not work, what I am doing wrong?

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