Respuesta :

irspow
The difference between two values is a-b so

5-(-11)

5+11

16
Difference or distance = 5 - (-11)
5 - (-11)
The 'double negative' both change into a positive.
SO:
5 + 11 = 16 
(You probably know how to add but yeah =D)

I hope this helps! 
Have a sweet one!

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