Question Description
Use Gaussian elimination to find the complete solution to the following system of equations, or show that none exists. w - 2x - y - 3z = -9, w + x - y = 0, 3w + 4x + z = 6, 2x - 2y + z = 3
D. {(-1, 2, 1, 1)}

Final Answer

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I got the same answer. D is correct
http://www.wolframalpha.com/input/?i=w+-+2x+-+y+-+3z+%3D+-9%2C+w+%2B+x+-+y+%3D+0%2C+3w+%2B+4x+%2B+z+%3D+6%2C+2x+-+2y+%2B+z+%3D+3
