What should be added to 16 to get `(-31)` ?

Options

A. 15
B. -15
C. 37
D. -47

Answer

To solve the question "What should be added to 16 to get -31?", we can follow these steps:

### Step 1: Set up the equation
We need to find a number \( X \) that, when added to 16, gives us -31. We can express this as:
\[ 16 + X = -31 \]

### Step 2: Isolate \( X \)
To find \( X \), we need to isolate it on one side of the equation. We can do this by subtracting 16 from both sides:
\[ X = -31 - 16 \]

### Step 3: Perform the subtraction
Now we need to calculate \( -31 - 16 \):
- Since both numbers are negative, we add their absolute values:
\[ 31 + 16 = 47 \]
- The result will be negative because we are subtracting a positive number from a negative number:
\[ X = -47 \]

### Conclusion
Thus, the number that should be added to 16 to get -31 is \( -47 \).

### Final Answer
The answer is \( -47 \).

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