Adding X and Y values together.

Solution:

Based on the error message "NameError: name 'x' is not defined", it seems like you have not defined the value of `x` or `y` before calling the print statement.

To fix this issue, make sure you have defined the values of `x` and `y` and assigned them to some numerical value before calling the print statement.

For example:

x = 2
y = 3
print(x+y)

Alternatively, you can pass the values of `x` and `y` as arguments to the print function, like this:

print(2+3)