In example 2 how can any number be smaller than 5 and greater than 7 - Maths - Linear Inequalities

Question

In example 2 how can any number be smaller than 5 and greater
than 7 ??? plz explain

Pooja · Accepted Answer

The solution we are getting is z < 5 and z
> 7
So, any number lying between 5 and 7 will not be part of
solution set
So, any number below 5 will be part of solution set and any
number above 7 will be part of its solution set
You can also take a look on the number line as well that is
given in the answer in study material

In example 2...how can any number be smaller than 5 and greater than 7 ??? plz explain....