Answer:
-4 + 9 = 5
Step-by-step explanation:
because there are more positives than negatives, you're going to end up with a positive answer
- - - -
+ + + + + + + + +
its evident that there are more positives
when you make zero pairs (pairs of one negative and one positive), you end up with positive 5
this means that -4 + 9 = 5
