I didn’t see the `+=` at first! Whoops!😅
Tip: += means “add the right side to the current value.” So `num += num-5` could be written as:
num = num + (num-5)
For the example:
num = 10
num = num * 2 # now 20
num += num - 5 # add (20 - 5), now 35
print(num) # prints 35
@PythonPr C. num = 10 then num = 20 in the third spot, it adds num (which was 20) to 20 then subtracts 5. Even if you do the portion on the right first, it's still going to add 15 to the original 20.