Simple Question

When taking Python courses, sometimes I see this as the correct way to complete the lesson:

money_in_bank_account = 100
money_in_bank_account += 200 + 50

(this bank account thing is just an example) and then sometimes I see this:

money_in_bank_account = 100
money_in_bank_account = money_in_bank_account + 200 + 50

So is there any different between using the variable name in the new value being added to the variable and just using “+=”?

+= is just a shorthand, both lines do the same thing.