We know that one of the patients needs x sessions.
Another patient needs 5 more than that, which means they need x + 5 sessions.
The total number of sessions needed by these two patients is: x + (x + 5) = 2x + 5.
The remaining patients need a total of 25 - (2x + 5) = 20 - 2x sessions.
We are given that the remaining patients need 8 sessions, so we can write: 20 - 2x = 8.
Solving for x, we get: x = 6.
The value of x is 6.
#### 6
The answer is: 6
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
A psychiatrist has 4 patients that need 25 sessions in total. One of the patients needs x sessions. Another patient needs 5 more than that. How many sessions would the remaining patients need?
If we know the answer to the above question is 8, what is the value of unknown variable x?

### Answer:
