Yes, it's quite simple to do with Computed Fields:

Select the field x_studio_total and then click on “More”

(Screenshot for illustration only, your field name is different)

1. Stored
   • This should be set to FALSE in most cases.
   • If it is set to TRUE, the value of the computed field will only be changed if the value of one of the dependent fields changes, but it does mean that you can use the field in filters, grouping, domain, etc.
2. Dependencies
   • Fields used in the calculation  - in your example: x_studio_1, x_studio_2  
3. Compute (Python code)

for record in self: 
   record['x_studio_total'] = record.x_studio_1 + record.x_studio_2

Then save your changes.