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October 21, 2014

October 21, 2014

Posted by **cole** on Thursday, December 20, 2012 at 11:05am.

- math -
**Reiny**, Thursday, December 20, 2012 at 11:34amgreen marbles --- x

blue marbles ---- 57-x

57-x - x = 13

-2x = -44

x = 22

so 22 green and 35 blues

check:

do they add up to 57 ? YES

are there 13 more blue than green ? YES

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