SOLUTION: solve by row equivalent x+y+z=-2 2x+8y+5z=5 x+2y-z

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Question 1093169: solve by row equivalent
x+y+z=-2
2x+8y+5z=5
x+2y-z
Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
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What is the third line in this system of equations ?