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January 31, 2015

January 31, 2015

Posted by **tawnie** on Tuesday, March 8, 2011 at 5:03pm.

- math -
**PsyDAG**, Wednesday, March 9, 2011 at 12:17pm(x+y)/2 = 76

x-y = 28

x = 28+y

Substitute 28+y for x in first equation and solve for y. Insert that value into the second equation and solve for x. Check by inserting both values into the first equation.

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