### Question Description

2x + 3y - 5z = 15

x + 2y - z = 4

A. {(6t + 28, -7t - 6, t)}

B. {(7t + 18, -3t - 7, t)}

C. {(7t + 19, -1t - 9, t)}

D. {(4t + 29, -3t - 2, t)}

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Use Gaussian elimination to find the complete solution to each system.

2x + 3y - 5z = 15

x + 2y - z = 4

A. {(6t + 28, -7t - 6, t)}

B. {(7t + 18, -3t - 7, t)}

C. {(7t + 19, -1t - 9, t)}

D. {(4t + 29, -3t - 2, t)}

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Correct answer is:

B. {(7t + 18, -3t - 7, t)}

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