Question: Exercises 7173 will help you prepare for the material covered in the next section. In each exercise, refer to the following system: Show that (12z

Exercises 71–73 will help you prepare for the material covered in the next section. In each exercise, refer to the following system: 3x-4y + 4z = 7 = x - - 2z = 2

Show that (12z + 1, 10z - 1, z) satisfies the system for z = 1.

3x-4y + 4z = 7 = x - - 2z = 2 y 2x-3y + 6z = 5. =

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