Posted by **Erin** on Sunday, October 14, 2012 at 7:50pm.

x+2y+5z=-1

2x-y+z=z

3x+4y-4z=14

solve the system using linear combination method.

- Algebra 2 -
**Henry**, Monday, October 15, 2012 at 9:06pm
Are you sure Eq2 = Z?

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