Expressions vs. Equations Vocabulary

Front

What is a variable in an expression?

Back

A symbol (often a letter) that represents an unknown value.

Front

What is a constant in an expression?

Back

A fixed value that does not change.

Front

What is a numerical expression?

Back

An expression that contains only numbers and operations.

Front

What operation does the expression 15y represent?

Back

Multiplication of 15 and the variable y.

Front

What is a coefficient?

Back

The number in front of a variable that indicates how many times to multiply the variable.

Front

What is an equation?

Back

A mathematical statement that two expressions are equal, often containing an '=' sign.

Front

What is an expression?

Back

A combination of numbers, variables, and operations without an equality sign.

Front

What does it mean to simplify an expression?

Back

To combine like terms and reduce the expression to its simplest form.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an '=' sign, while an equation does.

Front

What is a term in an expression?

Back

A single number, variable, or the product of numbers and variables.