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December 19, 2014

December 19, 2014

Posted by **Joe** on Monday, February 25, 2013 at 12:26pm.

- Algebra -
**Steve**, Monday, February 25, 2013 at 12:32pmE = M+11

Last year,

(E-1) = 2(M-1)

so, substitute:

(M+11-1) = 2(M-1)

M+10 = 2M-2

M = 12

so, E=23

Check: last year, 22 = 2*11

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