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December 18, 2014

December 18, 2014

Posted by **zoe** on Monday, November 29, 2010 at 8:57pm.

-3 x- 8y=19

4x+9y=-22

- math -
**bobpursley**, Monday, November 29, 2010 at 9:09pmmultiply the first equation by 4, the second by 3

-12x-32y=76

12x+27y=-66

add the equations.

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