The midpoint of a line segment divides the line into equal parts.
The value of x is: 10
From the question, we understand that Q is the midpoint of PR.
This means that:
PQ = QR
So, we have:
[tex]2x + 5 = 20[/tex]
Collect like terms
[tex]2x = 25 - 5[/tex]
Subtract 5 from 25
[tex]2x = 20[/tex]
Divide by 2
[tex]x = 10[/tex]
Hence, the value of x is 10
See attachment for the illustration of midpoint
Read more about midpoint at:
https://brainly.com/question/2441957