Expressions and Equations Vocab

Front

42z means the same as

Back

42 times z

Front

Which answer correctly combines like terms in the expression 4x + 7 + 2x - 1?

Back

6x + 6

Front

A part of an expression, usually separated by addition or subtraction signs

Back

term

Front

Replacing the variables with a number to calculate the value of the expression

Back

substitution

Front

A mathematical statement that shows an equality between two expressions using an equal sign

Back

equation

Front

What is an expression?

Back

A combination of numbers, variables, and operators without an equal sign.

Front

What is a variable?

Back

A symbol used to represent an unknown value, often denoted by letters like x or y.

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 a coefficient?

Back

A numerical factor in a term of an expression, such as the 4 in 4x.

Front

What is an operator?

Back

A symbol that represents a mathematical operation, such as +, -, ×, or ÷.