The sum of two integers is `-12`. If one of them is `43`, find the other.

Options

A. `55`
B. `-55`
C. `-25`
D. `25`

Answer

To solve the problem step by step, we can follow these instructions:

### Step 1: Understand the problem
We know that the sum of two integers is -12, and one of the integers is 43. We need to find the other integer.

### Step 2: Set up the equation
Let the other integer be represented as \( x \). According to the problem, we can write the equation:
\[ 43 + x = -12 \]

### Step 3: Isolate \( x \)
To find \( x \), we need to isolate it on one side of the equation. We can do this by subtracting 43 from both sides:
\[ x = -12 - 43 \]

### Step 4: Simplify the right side
Now, we simplify the right side:
\[ x = -12 - 43 = -55 \]

### Step 5: Conclusion
Thus, the other integer is:
\[ x = -55 \]

### Final Answer
The other integer is \(-55\).

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