To solve the equation \( 9 - 3x = 39 \), follow these steps:

### Step 1: Subtract 9 from both sides
\[
9 - 3x - 9 = 39 - 9
\]
\[
-3x = 30
\]

### Step 2: Divide both sides by -3
\[
\frac{-3x}{-3} = \frac{30}{-3}
\]
\[
x = -10
\]

The solution is \( x = -10 \).

Would you like more details or have any questions?

Here are 5 related questions:
1. How would you solve \( 5x + 12 = 32 \)?
2. What happens if we multiply both sides of an equation by a negative number?
3. Can you solve \( 2x - 7 = 15 \)?
4. What if the equation were \( -4x + 9 = 17 \)?
5. How would you check if a solution to an equation is correct?

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

Learn how to solve the linear equation 9 - 3x = 39 step-by-step. This problem covers key algebraic concepts and the process of isolating variables. Suitable for students in Grades 6-8.

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