Answer:
Explanation:
To evaluate the expression -11 - s for s = -15, we substitute -15 for s in the expression and perform the calculation. Here are the steps:
1. Replace s with -15 in the expression: -11 - (-15)
2. Simplify the double negative: -11 + 15
3. Perform the addition: 4
Therefore, when s is equal to -15, the expression -11 - s evaluates to 4.
In other words, -11 - (-15) is equivalent to 4.