To solve the equation \(-18 = 3w + 9\), follow these steps:

1. Subtract 9 from both sides to isolate the term with \(w\):
   \[
   -18 - 9 = 3w
   \]
   \[
   -27 = 3w
   \]

2. Divide both sides by 3 to solve for \(w\):
   \[
   \frac{-27}{3} = w
   \]
   \[
   w = -9
   \]

The solution is \(w = -9\).

Would you like more details or have any other questions?

Here are 5 related questions for further practice:
1. Solve: \( 2x + 5 = 15 \)
2. Solve: \( 4y - 8 = 12 \)
3. Solve: \( 7z + 3 = -18 \)
4. Solve: \( -3p - 6 = 9 \)
5. Solve: \( 5q + 2 = -23 \)

**Tip:** Always perform the same operation on both sides of the equation to maintain balance.

Learn how to solve the linear equation -18 = 3w + 9 step by step. This problem covers key algebraic concepts such as isolating variables and basic division. Suitable for students in Grades 6-8.

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