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December 22, 2014

December 22, 2014

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

2x+y-z=7

-x-2y+4z=-15

x+2y=5z=17

(-2, 6, -5)

(1, 3, 2)

(2, 5, -2)

(3, 1, 0)

- Algebra - eh? -
**Steve**, Friday, October 4, 2013 at 12:50pmfixing the typo so the 3rd line reads

x+2y+5z=17

still doesn't produce one of the choices.

Another typo?

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