Let's solve the equation:

\[
6X + 9X = 30
\]

1. Combine like terms:
\[
(6X + 9X) = 15X
\]

So the equation becomes:
\[
15X = 30
\]

2. Solve for \(X\) by dividing both sides of the equation by 15:
\[
X = \frac{30}{15} = 2
\]

Thus, the solution is:
\[
X = 2
\]

Would you like more details or have any questions?

Here are 5 related questions you might consider:
1. How do you solve equations with variables on both sides?
2. What happens if the equation involves fractions?
3. How would you solve \(6X + 9X = 0\)?
4. How do you solve inequalities like \(6X + 9X > 30\)?
5. Can you solve equations with multiple variables?

**Tip:** Always simplify the equation by combining like terms before isolating the variable!

Learn how to solve the linear equation 6X + 9X = 30 with step-by-step guidance. This problem involves algebraic concepts such as combining like terms and solving for a variable using basic linear equation methods. Suitable for students in Grades 6-8.

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