Question 1134023: 5x-2y+z=3
౩x+2y+7z=5
X+y+3z=2
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! 5x-2y+z=3
౩x+2y+7z=5
X+y+3z=2
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Add eqns 1 & 2
5x-2y+z=3
౩x+2y+7z=5
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8x + 8z = 8 Eqn A
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Add eqn 1 and 2x eqn 3
5x-2y+z=3
2x+2y+6z=4
---------------- Add
7x + 7z = 7 Eqn B
Eqns A & B are equivalent.
--> No unique solution.
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