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December 18, 2014

December 18, 2014

Posted by **Anonymous** on Monday, September 13, 2010 at 3:48pm.

- geometry -
**Anonymous**, Monday, September 13, 2010 at 3:52pmsince B is the midpoint of line AC, that means AB=BC

set AB=BC

12x-5=4x+15

find x. plug x into 4x+15 to find BC.

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