Question: Use the fact that the following two matrices are inverses of each other to solve the system of linear equations. 1. 2. 3. 4. 1

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

1 2 21 5 -2 -21 3 2 and -1 _1 2 3.

1.

x + 2y + 2z = 1 x+ 3y + 2z = -1 x + 2y + 3z = -1

2.

1 2 21 5 -2 -21 3 2 and -1 _1 2

3.

3. x + 2y + 2z = 1 x+ 3y + 2z

4.

= -1 x + 2y + 3z = -1

1 2 21 5 -2 -21 3 2 and -1 _1 2 3. x + 2y + 2z = 1 x+ 3y + 2z = -1 x + 2y + 3z = -1

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