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A) X=1, Y=-1, Z=3, W=-2
B) X=-3

Question 103

Multiple Choice

{2x+4y3z+w=10x+y+3zw=24xy+z+3w=13x+y+2zw=3\left\{ \begin{array} { l } 2 x + 4 y - 3 z + w = - 10 \\- x + y + 3 z - w = - 2 \\4 x - y + z + 3 w = 13 \\x + y + 2 z - w = 3\end{array} \right.


A) x=1, y=-1, z=3, w=-2
B) x=-3, y=-3, z=1, w=-2
C) x=3, y=-3, z=1, w=-1
D) x=3, y=-6, z=-1, w=-1

Correct Answer:

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