Math 6

Question Analysis
This question involves adding a negative number to a positive number.
The main focus is on applying the correct rule for this type of addition operation.

Key Concept Explanation
Adding a negative number to a positive number is equivalent to subtracting the magnitude of the negative number from the positive number.
On the number line, it means moving in the negative direction from the position of the positive number.

Step-by-Step Solution
We have 5 + (-9).
This is the same as 5 - 9.
Since 9 > 5, we subtract 5 from 9 and take the negative sign.
So, 5 - 9 = -4.
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