Yes the answer is -1

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Regards Anshika Pandey

Explanation:

Introduction:
In this question, we are given (-8) - (-9) and we need to find its value. To solve this, we need to understand the concept of subtraction of integers.

Subtraction of Integers:
Subtraction is the process of finding the difference between two numbers. In the context of integers, subtraction involves adding the opposite of the second number. To subtract a negative number, we can rewrite it as adding its opposite.

Step 1: Rewrite the subtraction as addition:
(-8) - (-9) can be rewritten as (-8) + (+9). We change the subtraction to addition and the negative sign of the second number to a positive sign.

Step 2: Add the integers:
To add integers, we add their numerical values and assign the sign of the larger number. In this case, the numerical values of -8 and +9 are 8 and 9 respectively. The larger number is 9, and its sign is positive. Therefore, the sum is 9.

Conclusion:
The value of (-8) - (-9) is 9.