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Chapter One Sec 1

QuestionAnswer
variable symbol that can be replaced by any member of a set of numbers or other objects (a,b,c,d,e)
expression numbers and variables that are combined using the operations of arithmetic
evaluating an expression substituting for variables in an expression
formula operations equation stating that two expressions are equal
algebraic expression another name for an expression
algebraic sentence consists of expressions related with a verb. <,>,=
order of operations PEMDAS; parenthesis, powers, multiplication and division, addition and subtraction
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