-9 - 12
The answer to the expression -9 - 12 is -21.
To subtract -12 from -9, you can follow these steps:
1. Write down the numbers: -9 and -12.
2. Start with -9.
3. Subtract 1 from -9 to get -10.
4. Subtract 2 more to get -12.
So, the result of -9 - (-12) is -3.
To find the sum of -9 and -12, you need to add the two numbers.
When adding negative numbers, you can think of it as subtracting the absolute values and keeping the negative sign.
In this case, |-9| is 9, and |-12| is 12. Subtracting 9 from 12 gives you 3. Since both numbers are negative, the answer is -3.
Therefore, -9 - 12 = -3.