Error in the Code:

The error in the given code is that the print statement is missing the format specifier to display the value of the variable 'x'. As a result, the output will display the string "My age is:" along with the variable name 'x' instead of its value.

Correct Code:

To correct the error in the code, we need to include the format specifier in the print statement. The correct code is as follows:

x = 12
print("My age is:", x)

In the above code, we have included the comma separator between the string and variable name, which automatically adds a space between them. The value of the variable 'x' is displayed along with the string "My age is:".

Explanation:

The given code assigns the value 12 to the variable 'x'. The next line of code contains a print statement that displays the string "My age is:" along with the variable 'x'. However, the print statement is missing the format specifier to display the value of the variable.

In Python, we use the format specifier '{}' to indicate the position where we want to display a variable's value. We can include multiple format specifiers in a single string and pass the values as arguments to the print statement.

In the corrected code, we have included a comma separator between the string "My age is:" and the variable 'x'. This automatically adds a space between them. When the code is executed, the output will display the string "My age is:" followed by the value of the variable 'x', which is 12.

Conclusion:

In this question, we identified the error in the given code, which was missing the format specifier to display the value of the variable 'x'. We corrected the code by including the comma separator between the string and variable name. Finally, we explained the concept of format specifiers in Python and how they are used to display variable values in a string.