Sorry again but I am terrible at math and I need help help writing this prob into an equation: 50 pounds of potato salad cost $39.50 and 50 pounds of bean salad cost $23.50. What was the difference in costs of the salads?

what is the difference between 10 and 6? It is 10-6, or 4.

So, the difference here is just

x = 39.50 - 23.50