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September 20, 2014

September 20, 2014

Posted by **Debbie** on Sunday, February 12, 2012 at 2:38pm.

- MATH -
**Steve**, Sunday, February 12, 2012 at 5:23pmRS + ST = RT

RT = 3RS

RS + ST = 3RS

3x-3 + 2x+6 = 3(3x-3)

5x + 3 = 9x - 9

4x = 12

x = 3

RS = 6

ST = 12

RT = 18

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