The expression in the image is:

$y = \frac{x + 3}{2x - 1}$

To solve for $y$, this equation is already solved for $y$ in terms of $x$. Therefore, $y$ is a function of $x$ given by the above expression.

To evaluate this function for a specific value of $x$:

1. Substitute the value of $x$ into the equation.
2. Simplify the expression to find the corresponding value of $y$.

For example, if you want to evaluate $y$ at $x = 2$:

$y = \frac{2 + 3}{2(2) - 1} = \frac{5}{4 - 1} = \frac{5}{3}$

So, $y = \frac{5}{3}$ when $x = 2$.

Would you like more details on how to work with this type of function, or do you have any specific questions?

Related Questions:

1. What is the value of $y$ when $x = 0$ in this function?
2. How does the function $y = \frac{x + 3}{2x - 1}$ behave as $x$ approaches infinity?
3. Are there any values of $x$ for which this function is undefined?
4. How do you find the inverse of this function?
5. What are the asymptotes of the function $y = \frac{x + 3}{2x - 1}$?

Tip:

When dealing with rational functions, it's crucial to identify points where the function might be undefined, typically where the denominator equals zero.