Question: Repeat Exercise 5 for each of the following linear systems: (a) x + y + 2z + 3w = 13 x - 2y + z

Repeat Exercise 5 for each of the following linear systems:
(a) x + y + 2z + 3w = 13
x - 2y + z + w = 8
3x + y + z - w = 1
(b) x + y + z = 1
x + y - 2z = 3
2x + y + z = 2
(c) 2x + y + z - 2w = 1
3x - 2y + z - 6w = -2
x + y - z - w = - 1
6x + z - 9w = - 2
5x - y + 2z - 8w = 3

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