20x + 15k is the answer we just have to remove the bracket and add the terms
hope it helps
For this case we have that by definition, the equation of a line in the slope-intersection form is:

Where:
m: It is the slope
b: It is the cut point with the y axis
The slope is: 
Thus, the equation is of the form:

We substitute the given point and find "b":

Finally, the equation is:

Answer:

If I had to simplify 15/24 it would be 5/8