2. 1. Variable 2.1 Variable : In a program, a variable is a named item, such as x or numPeople, used to hold a value. 2.2 Variable Assignment, Variable Declaration, : An assignment assigns a variable with a value, such as x = 5. That assignment means x is assigned with 5, and x keeps that value during subsequent assignments, until x is assigned again. An assignment's left side must be a variable..