To find the sum of [tex]\(12 + (-10)\)[/tex], follow these steps:
1. Identify the numbers you are working with: 12 and [tex]\(-10\)[/tex].
2. Notice that [tex]\(-10\)[/tex] is a negative number.
3. When adding a negative number, it is equivalent to subtracting the absolute value of that number from the other number. So, [tex]\(12 + (-10)\)[/tex] can be rewritten as [tex]\(12 - 10\)[/tex].
4. Perform the subtraction: [tex]\(12 - 10 = 2\)[/tex].
Therefore, the sum of [tex]\(12 + (-10)\)[/tex] is [tex]\(\boxed{2}\)[/tex].