+0  
 
+1
55
1
avatar+33 

a=b=c

formula 

s = a+b+c 

    2

 Jan 5, 2020
 #1
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Assuming for integers > -1 

~~~~~~~~~~~~~~~~~~~

a-b-c=0 

a=b=c

2s=a+b+c  

2s-a-b=c 

a-b-2s-a-b 

-2b-2s=0 

-2(b+s)=0 

b+s=0  

Indeed for that to be true a+b+c/2 MUST be 0 and b is zero 

Their sum is 0 simply.

 Jan 5, 2020

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