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March 29, 2015

March 29, 2015

Posted by **Evelyn** on Sunday, April 15, 2012 at 11:12pm.

- algebra -
**Steve**, Monday, April 16, 2012 at 10:47ama = s+13

(a+9) = 2(s+9)

a - s = 13

a - 2s = 9

s = 4

a = 17

in 9 years:

s = 13

a = 26

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