a +(- c) :
a is -1 and c is 3, so it would be:
-1+(-3) = -4
c-(-b) :
c is 3 and b is 2, so it would be:
3-(-2) = 5
b :
b is 2 and there’s no addition or subtraction that needs to be done here
we have -4, 5, and 2 and going from least to greatest it’s : -4 < 2 < 5
so just look at which values gave us those answers and that would be:
a+(-c) < b < c-(-b)
so the final answer is a+(-c) < b < c-(-b)