BASICS OF ALGEBRA

a number multiplied by a variable

terms with the same variables raised to the same exponents

expressions that have the same value while they may look different

a single #, variable, or # multiplied by a variable that are separated by a + or - sign

to perform all indicated operations

a rational or irrational #; every point on the # line

a member of the set of whole numbers and their opposites

an expression that contains at least one variable

a rule for evaluating expressions (PEMDAS)

a symbol used to represent a quantity that can change

to find the value