SOLUTION: How do I find the ordered triple of these equations? 2x - y + 3z = -9 x + 3y - z = 10 3x + y - z = 8

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Question 877512: How do I find the ordered triple of these equations?
2x - y + 3z = -9
x + 3y - z = 10
3x + y - z = 8

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I suggest elimination.
Subtract eqns 2 & 3, you get an eqn in x & y.
Multiply eqn 2 by 3, then add eqn 1 --> another eqn in x & y.
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Now it's 2 eqns in 2 variables.