In most programming languages, the operator ++ is equivalent to the statement "+= 1".

The statement is true because in most programming languages, the assignment operator "=", is used to assign a value to a variable. It does not simply test for equality like the "==" operator. So when we say that the operator "=" is equivalent to the statement "1", it means that we are assigning the value of 1 to a variable. This statement would be valid in programming languages like C, C++, Java, Python, and many others.