SOLUTION: what are the x,y,z coordinates of -9x-9y-9z=27 -4x-7y+9z=-16 -5x-7y+2z=-2

Algebra ->  Matrices-and-determiminant -> SOLUTION: what are the x,y,z coordinates of -9x-9y-9z=27 -4x-7y+9z=-16 -5x-7y+2z=-2      Log On


   

Question 474015: what are the x,y,z coordinates of -9x-9y-9z=27
-4x-7y+9z=-16
-5x-7y+2z=-2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
-9x-9y-9z=27
-4x-7y+9z=-16
-5x-7y+2z=-2
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x + y + z = -3
4x+7y -9z = 16
5x+7y -2z = 2
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Use any method you know to get:
x = -7
y = 5
z = -1
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Cheers,
Stan H.