+0  
 
0
25
1
avatar+150 

If the sum of three numbers is negative, then all three numbers are negative. If false, give a counterexample. 

angiesalazar1942  Sep 6, 2018
 #1
avatar+1996 
0

-23423423423 + 1 + 1 < 0

Rom  Sep 7, 2018

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