Use the fact that the following two matrices are inverses of each other to solve the system

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Use the fact that the following two matrices are inverses of each other to solve the system of linear equations.
1 0 -2 2 07 -5 5 -9 1 -20 4 -5 -5 and -4 -4 0 1 1] -9 -4 -2 -1 -2 -4 -1 4,

1.

9x + 2z -20x – 9y – 5z + 5w = 0 4x -4x – 2y – z + w=-1

2.

3.

4.

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Finite Mathematics and Its Applications

ISBN: 978-0134768632

12th edition

Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel, Steven Hair

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