SOLUTION: 5x + 5y - 4z = 13 5x + 3y + z = - 3 3x - 2y - z = - 10 x=___ y=___ z=___ solve the system

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: 5x + 5y - 4z = 13 5x + 3y + z = - 3 3x - 2y - z = - 10 x=___ y=___ z=___ solve the system      Log On


   

Question 1142882: 5x + 5y - 4z = 13
5x + 3y + z = - 3
3x - 2y - z = - 10
x=___
y=___
z=___
solve the system
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
5x + 5y - 4z = 13
5x + 3y + z = -3
3x - 2y - z = -10
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Add equations 2 & 3
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Multiply eqn 2 by 4, then add eqn 1.
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z is eliminated.
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Do not enter this.
x=___
y=___
z=___
We have no use for it.