It appears you might be referring to an equation or a calculation that involves the number -4, possibly as a solution, term, or factor in a broader expression. Could you clarify the context so I can provide a more precise answer?

Would you like any details on handling equations involving negative numbers or further elaboration on this topic?

Here are a few related questions that might deepen your understanding:

1. How do you handle negative numbers in addition and subtraction problems?
2. What happens when you multiply or divide two negative numbers?
3. Can you explain why multiplying a negative by a positive results in a negative?
4. How do negative exponents influence the values of an expression?
5. What are some applications of negative numbers in real-world scenarios?

Tip: Remember, subtracting a negative is the same as adding a positive. For example, $5 - (-3) = 5 + 3 = 8$.