Because your answer (2,4) made me smile, I will at least lead you on how to do it.

Inequalities have many solutions, a region of solutions. Not only one point.

Equations, though, have few solutions. Maybe one point only.

Go see zasi's post "Help" in the "Pre-Algebra and Algebra" section of this Forum. It should be close to the top of the list because it's new. The topic is about inequalities.