2n-4>-48. Add 4 to each side: 2n>-44 making n>-22.
On a single axis, a graduated line extending at one end to the marked point -22 and the other end extending to infinity, represents the solution graphically.
The point marked -22 is not included since the inequality excludes the point, so you have to imagine this line without its starting point.
All numbers bigger (higher) than -22 are included in the solution, so, for example, zero is included, as are 22 and all real numbers including fractions and irrational numbers (like pi).