Question 980804:  How many distinct nonzero integers can be represented as the difference of two numbers in the set {1,3,5,7,9,11,13} ?  
 Answer by Boreal(15235)      (Show Source): 
You can  put this solution on YOUR website! {-12,-10,-8,-6,-4,-2,2,4,6,8,10,12} 
12 distinct non-zero integers. 
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