Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.  x + y + z + w =7 3x - 2z + 5w=11-4x + 3y + w=4-x - y - z - w=6

A. ?
B. {(, - , 5, - )}
C. {(, 1, , -2)}
D. {(-11, , -4)}


Answer: A

Mathematics

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