To solve the equation \( x + 9 = 15 \), follow these steps:

1. Subtract 9 from both sides of the equation:
   \[
   x + 9 - 9 = 15 - 9
   \]
   \[
   x = 6
   \]

So, the solution is \( x = 6 \).

Would you like more details or have any questions?

Here are 5 related questions for further practice:
1. Solve \( x + 7 = 12 \).
2. Solve \( x - 4 = 10 \).
3. Solve \( x + 3 = 18 \).
4. Solve \( 2x + 9 = 15 \).
5. Solve \( x + 9 = 20 \).

**Tip:** When solving linear equations, always perform the same operation on both sides to maintain equality.

Learn how to solve the simple linear equation x + 9 = 15 with a detailed, step-by-step solution. This problem focuses on key algebra concepts and is suitable for students in Grades 6-7. Follow the process of subtracting constants from both sides to find the value of x.

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