Examlex
The simultaneous equation method is
ToLowerCase
A method that converts all the characters in a given string to lower case.
LastIndexOf
A method used to find the last occurrence of a specified value in a string or array, returning the index at which it was found, or -1 if it is not found.
Substring
A portion of a string or sequence of characters within a larger string.
Equals
Equals is a method typically defined in object-oriented programming languages to evaluate whether two objects are equivalent in value or state.
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