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Posted by **Geno** on Monday, September 24, 2007 at 9:56pm.

It says to use the elimination method.

2x-y+2z=-7

-x+2y-4z=5

x+4y-6z=-1

- Math -
**bobpursley**, Monday, September 24, 2007 at 10:32pmhttp://library.thinkquest.org/C0110248/algebra/simelimination.htm

- Math -
**Geno**, Monday, September 24, 2007 at 10:59pmI know how to use the elimination method, I just get really confused when there's three lines and three variables.

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