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Question 1055583: 3x-4y-z=6
2x-y+z=-1
4x-7y-3z=13
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! 3x-4y-z=6
2x-y+z=-1
4x-7y-3z=13
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I would use elimination.
Add eqns 1 and 2 --> an eqn in x & y (z is eliminated).
Multiply eqn 2 by 3, than add eqn 3.
--> a 2nd eqn in x & y.
etc.
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email via the TY note for help or to check your work.
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