https://file.aiquickdraw.com/mathbot/file/1727146499549506obmuw.jpg

The image shows a sequence of numbers: **99, 96, 93, ...** followed by the text "Carilah rumus suku ke-n", which is in Indonesian and translates to **"Find the formula for the nth term"** in English.

### Step-by-step solution:
1. The sequence provided is: 99, 96, 93, ...
2. Observing the differences between consecutive terms:
   - 99 - 96 = 3
   - 96 - 93 = 3
   Hence, the sequence is an **arithmetic sequence** with a common difference \( d = -3 \).

3. The general formula for the nth term \( a_n \) of an arithmetic sequence is:
   \[
   a_n = a_1 + (n - 1) \cdot d
   \]
   Where:
   - \( a_1 \) is the first term (99),
   - \( d \) is the common difference (-3).

4. Substituting the values:
   \[
   a_n = 99 + (n - 1) \cdot (-3)
   \]
   Simplifying:
   \[
   a_n = 99 - 3(n - 1)
   \]
   \[
   a_n = 99 - 3n + 3
   \]
   \[
   a_n = 102 - 3n
   \]

### Formula for the nth term:
\[
a_n = 102 - 3n
\]

Would you like more details on this or have any questions?

### Related questions:
1. How do you find the sum of the first n terms of an arithmetic sequence?
2. What is the general form of an arithmetic progression?
3. How do you determine if a sequence is arithmetic or geometric?
4. Can you derive the formula for the sum of an arithmetic series?
5. How do arithmetic sequences apply in real-world problems?

### Tip:
When dealing with arithmetic sequences, always check the difference between consecutive terms to identify the common difference easily!

Learn how to find the formula for the nth term of the arithmetic sequence 99, 96, 93, ... by using the arithmetic sequence formula. This problem involves identifying the common difference and using it to derive the general term. Suitable for students in Grades 7-9.

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