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Answer: (I'm not really sure what this means. Actual answer is in bold) more than one answer, 4 and -11 would work

 Aug 4, 2019
 #1
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+3

 

The sum of the digits in each expression is 15. 

 

7 + 3 + 5 = 15

8 + 4 + 3 = 15

9 + 5 + 1 = 15

 

If this is the right way to solve the problem, then 6 + 5 + 4 = 15 which gives us the answer is 4. 

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 Aug 5, 2019
 #2
avatar+893 
+1

I never saw that. Thanks!!!

dgfgrafgdfge111  Aug 5, 2019

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