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September 3, 2015

Homework Help: Algebra

Posted by Mary on Friday, October 4, 2013 at 12:30pm.

Which ordered triple is a solution of this system?

2x+y-z=7
-x-2y+4z=-15
x+2y=5z=17

(-2, 6, -5)
(1, 3, 2)
(2, 5, -2)
(3, 1, 0)

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