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July 31, 2014

July 31, 2014

Posted by **peter** on Thursday, December 19, 2013 at 3:54pm.

answer and explain

- math -
**Steve**, Thursday, December 19, 2013 at 3:56pm#(a,b,c,d) = 0-(a+b+c+d)

0-(4+(-8)+11+d) = 14

-(d+7) = 14

d+7 = -14

d = -21

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