On Tuesday, Matt worked half the number of minutes he worked on Monday, which means he worked 450/2 = 225 minutes.
On Wednesday, he worked for x minutes.
The difference between the number of minutes he worked on Wednesday and Tuesday is: x - 225.
We are given that this difference is 75 minutes, so we can write: x - 225 = 75.
Solving for x, we get: x = 300.
The value of x is 300.
#### 300
The answer is: 300
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
On Monday, Matt worked for 450 minutes in his office.  On Tuesday, he worked half the number of minutes he worked on Monday.  On Wednesday, he worked for x minutes.  How many more minutes did he work on Wednesday than on Tuesday.
If we know the answer to the above question is 75, what is the value of unknown variable x?

### Answer:
