SOLUTION: Solve. If there is no solution or if dependent, so state. x - y + z = -11 x + y + z = -5 x + y - z = 1

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Question 82711This question is from textbook
: Solve. If there is no solution or if dependent, so state.
x - y + z = -11
x + y + z = -5
x + y - z = 1 This question is from textbook

Found 2 solutions by stanbon, jim_thompson5910:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Solve. If there is no solution or if dependent, so state.
x - y + z = -11
x + y + z = -5
x + y - z = 1
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Using Cramer's Method:
Coefficient determinant = (-1+1-1)-(1+1+1)=-4
The x-determinant = 5--15=20
Therefore x=20/-4=-5
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The y-determinant = -5-7 = -12
Therefore y = -12/-4 = 3
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the z-determinant = -5-(-17) = 12
Therefore z = 12/-4 = -3
=======================
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x=-5; y=3[ z=-3
========================
Cheers,
Stan H.
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
This solution was generated by the "Step-by-Step Linear Equations" solver which can be found here
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