The equation "X = 54" indicates that the variable X is equal to the number 54. In mathematics, this means that whenever X is referenced, it can be replaced with 54. This is a simple example of an algebraic expression where a variable is assigned a specific value. In practical terms, this equation can be used in various contexts, such as solving problems in geometry, finance, or science. For instance, if X represents the total number of items, then there are 54 items in total. Understanding such equations is fundamental in learning basic algebra.