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Algebra 1.5R C01-L01

Wirtz Intermediate Algebra Red Chapter 1 Lesson 1

Value of the variable (red p1) The numbers that can be represented by the variable
Variable expression (red p1) An expression that contains a variable
Value of the expression (red p1) The number named by the expression
Numerical expression (red p1) An expression that names a particular number
Simplify an expression (red p2) Replacing an expression containing variables by an equivalent expression with as few terms as possible
Substitution principle (red p2) An expression may be replaced by another expression that has the same value
variable (red p1) a symbol or letter used to represent one or more numbers
value of a numerical expression (red p1) the number named by a numerical expression
evaluate an expression (red p2) replacing each variable in a variable expression by a given value and simplifying the result.