-8 + (-15) Evaluate this expression
Mathematics · College · Wed Jan 13 2021
Answered on
o evaluate the expression -8 + (-15), you are essentially adding two negative numbers.
Let's break it down step by step:
1. Understand the operation: The "+" sign indicates that you are adding the two numbers. 2. Combine the negative signs: When you add two negative numbers, the result will also be negative. 3. Add the absolute values: Ignore the negative signs for a moment and just add the absolute values of the numbers. For -8 the absolute value is 8, and for -15 the absolute value is 15. 4. The sum of the absolute values is 8 + 15 = 23. 5. Reintroduce the negative sign: Since both numbers you are adding are negative, the result will be negative as well.
So, -8 + (-15) = -(8 + 15) = -23.