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).