I think this is the answer
Kx+9=7
Kx=-2 (subtract 9 from both sides)
X=-2/k (divide k from both sides.
The equation of the line is y = 3x - 4, so the inequality is y <= 3x - 4.
There are many pairs you could do, but I'm going to choose this one:

You can multiply them together, and get (that's how you know if they are factors):

Hope this helped!