SOLUTION: I do not understand this at all. Try solving out system of equation with four variables. x + y + z + w = 0 x + y - z - w = 1; x - y + z + w = 3; x - y - z + w = -1.

Algebra ->  Equations -> SOLUTION: I do not understand this at all. Try solving out system of equation with four variables. x + y + z + w = 0 x + y - z - w = 1; x - y + z + w = 3; x - y - z + w = -1.       Log On


   

Question 127055: I do not understand this at all.
Try solving out system of equation with four variables. x + y + z + w = 0 x + y - z - w = 1; x - y + z + w = 3; x - y - z + w = -1.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Try solving out system of equation with four variables.
x + y + z + w = 0
x + y - z - w = 1
x - y + z + w = 3
x - y - z + w = -1
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I used the Matrix function of a TI calculator to get the following:
x = 2
y = -3/2
z = 2
w = -5/2
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Cheers,
Stan H.