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July 23, 2014

July 23, 2014

Posted by **mike** on Monday, November 1, 2010 at 4:32pm.

- ALgebra -
**PsyDAG**, Tuesday, November 2, 2010 at 10:54ama + b = 87

a - b = 37

Add the two equations.

2a = 124

You should be able to take it from here.

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