**Subtracting (-72) from 12**

To subtract (-72) from 12, we need to understand the concept of subtracting a negative number.

When we subtract a negative number from a positive number, it is equivalent to adding the positive number. Therefore, subtracting (-72) from 12 is the same as adding 72 to 12.

Here is a step-by-step explanation of how to subtract (-72) from 12:

1. Change the subtraction sign to an addition sign:
-72 becomes +72.

2. Add the positive number to the original number:
12 + 72 = 84.

**Explanation in HTML bullet points:**

- Step 1: Change the subtraction sign to an addition sign.
-72 becomes +72.

- Step 2: Add the positive number to the original number.
12 + 72 = 84.

Therefore, subtracting (-72) from 12 is equal to adding 72 to 12, resulting in the answer of 84.