Posted by **JaneLee** on Tuesday, October 23, 2007 at 10:36pm.

1. solve this system using matrices:

3.7x-2.3+4.2z=8

2.6+4.6y-3.9z=10

8x+2z=20

2. Write this system as a matrix equation:

-2x+y=8

7x-3y=10

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