To solve the equation $5x - y = 9$ for $y$, let's isolate $y$.

Step 1: Isolate $y$

$5x - y = 9$ Subtract $5x$ from both sides: $-y = -5x + 9$ Multiply through by $-1$ to get $y$ on its own: $y = 5x - 9$

So, the solution is: $y = 5x - 9$

Would you like to dive deeper into this solution, or do you have any specific questions?

Here are 5 related questions to consider:

1. How would you graph the equation $5x - y = 9$?
2. What is the slope of the line represented by $y = 5x - 9$?
3. Can you find the x- and y-intercepts of the line?
4. How does changing the slope affect the graph of the line?
5. What happens if we set $x = 0$ in the equation?

Tip: The slope-intercept form $y = mx + b$ gives you a quick way to graph linear equations, where $m$ is the slope and $b$ is the y-intercept.