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December 18, 2014

December 18, 2014

Posted by **Ann** on Thursday, July 5, 2012 at 1:15pm.

-2x-8y==42

-4x+6y=-18

- algebra -
**bobpursley**, Thursday, July 5, 2012 at 1:49pmmultiply the first equation by negative 2

4x+16y=-84 check the sign, ==42?

-4x+6y=-18

add the equations....

24y=-102

y=102/24

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