
Algebraic Equation
An equation that contains one or more variables.

Algebraic Expression
An expression that contains one or more variables.

Coefficient
The number that is multiplied by the variable(s) in a single term. In the term 67rt, rt has a coefficient of 67.

Constant
A term that does not contain any variables.

Empty Set
A set with no members; also called the null set. Denoted Ø.

Equation
Sets two expressions equal to each other.

Expression
A "phrase" that represents a number.

Like Terms
Terms that contain the exact same variables raised to the same exponents, possibly with different coefficients.

Multiplicative Inverse Property
For every a, there exists a number such that a× = 1. is called the reciprocal of a, or the multiplicative inverse of a.

Null Set
A set with no members; also called the empty set. Denoted Ø.

Properties of Equality

Properties of Operations and Identities

Quotient Property
a× = .

Reciprocal
The number is called the reciprocal of a. When a is multiplied by its reciprocal, the result is 1.

Replacement Set
A set of values from which to find a solution.

Simplified Form
The form of an expression after like terms have been combined; equivalent to the original expression.

Solution
Any value of a variable that makes the specified equation true.

Solution Set
The set of all variables that makes the specified equation true.

Term
A single number or the product of a number and one or more variables.

Variable
A symbol used to represent a number.

Zero Product Property
If ab = 0, than a = 0 or b = 0 (or both).