Assertion: expression's variable | /r/HasProperty | symbol
Facets:
value: for a number
type: OTHER
Source sentences:
text: A variable is a symbol used to represent a number in an expression or an equation.
text: A variable is any symbol (most frequently a letter) that represents a number or a value that is unknown.
text: A variable is a symbol used to represent a number in an expression or an equation.
text: A Variable is a symbol for a number we don't know yet.
text: Variable expressions are expressions that involve variables, which are symbols that represent changing quantities.
text: Variables are symbols, usually letters, that substitute for unknown values.