Respuesta :
Simple...
you have: a=4 b= -2 c=8
Evaluate-->> a-b-c
4-(-2)-8
6-8
-2
Thus, your answer.
you have: a=4 b= -2 c=8
Evaluate-->> a-b-c
4-(-2)-8
6-8
-2
Thus, your answer.