2. Solve:

To solve the inequality , you simply need to isolate . Start by subtracting 9 from both sides:

So, the solution is . This means any number less than 3 is a solution to the inequality.

It can be fun to visualize the solution using a number line! Imagine drawing a line, marking the number 3, and shading everything to the left of it. That shaded region represents all the numbers that satisfy the inequality. Whether it’s 2, 1, or even negative numbers, they all work!