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January 30, 2015

Posted by **Ludjmy** on Monday, November 21, 2011 at 1:44pm.

b-c=15

a-2b+c=-5

2) x+y+z=3

13x+2x=2

-x-5z=-5

3)x-y+3z=3

-2x+2y-6z=6

y-5z=-3

4)3x-2y+z=1

-x+y-z=2

5x+2y+10z=-39

5)3x-2y+z=1

-x-y-z=-3

3x-2y+3z=-12

- algebra 2 -
**Damon**, Monday, November 21, 2011 at 3:50pmhttp://www.wolframalpha.com/input/?i=2a%2Bc%3D-10%2C+b-c%3D15%2C+a-2b%2Bc%3D-5+

2a+c=-10, b-c=15, a-2b+c=-5

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