Understand Operation: Understand the operation. Subtracting a negative number is the same as adding its positive counterpart.
Rewrite Subtraction: Rewrite the subtraction of a negative number as an addition. −11−(−9) is the same as −11+9.
Add Numbers: Add the numbers. Since we are adding a negative number and a positive number, the sign of the result will be the sign of the larger absolute value number, which is −11. Calculate the difference in their absolute values: 11−9=2.
Apply Sign: Apply the sign from Step 3 to the result from Step 3. The final answer is −2.