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April 20, 2015

April 20, 2015

Posted by **Brittany** on Sunday, June 26, 2011 at 5:37pm.

- Math -
**PsyDAG**, Monday, June 27, 2011 at 12:09pmLuis = a + 10

Luis + 1 = 3a

Substitute a+10 for a in second equation and solve for a. Insert that value into the first equation and solve for Luis. Check by inserting both values into the second equation.

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