To determine what number should be added to get the sum of -1, let's follow these steps:
1. Identify the target sum:
- The target sum we want to achieve is -1.
2. Determine the initial value:
- Let's assume the initial value is zero (0).
3. Formulate the equation:
- We need to find a number \( x \) that, when added to the initial value (which is zero), results in the target sum of -1. This can be expressed as:
[tex]\[
\text{initial value} + x = \text{target sum}
\][/tex]
Substituting the known values:
[tex]\[
0 + x = -1
\][/tex]
4. Solve for \( x \):
- To solve for \( x \), we rearrange the equation:
[tex]\[
x = \text{target sum} - \text{initial value}
\][/tex]
Since the initial value is 0 and the target sum is -1:
[tex]\[
x = -1 - 0
\][/tex]
[tex]\[
x = -1
\][/tex]
So, the number that should be added to the initial value of 0 to get the sum of -1 is -1. Therefore, the final sum is -1.
- Target Sum: -1
- Initial Value: 0
- Number to Add: -1
Thus, the numbers involved are:
[tex]\[
(-1, 0, -1)
\][/tex]
