To solve the equation \(-n = 9\), follow these steps:

1. Multiply both sides of the equation by \(-1\) to eliminate the negative sign on \(n\):
   \[
   -1(-n) = -1(9)
   \]
   This simplifies to:
   \[
   n = -9
   \]

So, the solution is \(n = -9\).

Would you like more details or have any questions?

Here are 5 related questions for practice:
1. Solve \( -x = 15 \).
2. Solve \( -2y = 14 \).
3. Solve \( -z + 3 = 7 \).
4. Solve \( -k - 5 = 10 \).
5. Solve \( -3m = -21 \).

**Tip**: When solving equations, always aim to isolate the variable by performing the inverse operation.

Learn how to solve the simple linear equation -n = 9 with a clear step-by-step solution. This problem covers basic algebraic concepts and demonstrates the use of inverse operations to isolate the variable. Suitable for students in Grades 6-8.

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