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Unformatted text preview: Chapter 8 Introduction to Algebra MartinGay, Basic College Mathematics with Early Integers 2 MartinGay, Basic College Mathematics with Early Integers 2 8.1 Variable Expressions 8.2 Solving Equations: The Addition Property 8.3 Solving Equations: The Multiplication Property 8.4 Solving Equations Using Addition and Multiplication Pr Chapter Sections 8.1 Variable Expressions MartinGay, Basic College Mathematics with Early Integers 4 MartinGay, Basic College Mathematics with Early Integers 4 Evaluating Algebraic Expressions Definition Example Variable : A letter to represent all the numbers fitting a pattern. Evaluate: 7 + 3z when z = 3 Algebraic Expression : A combination of numbers, letters (variables), and operation symbols. Evaluating the Expression : Replacing a variable in an expression by a number and then finding the value of the expression z 3 7 + SOLUTION SOLUTION ) 3 ( 3 7 + = ) 9 ( 7 + = 9 7 = 2 = MartinGay, Basic College Mathematics with Early Integers 5 MartinGay, Basic College Mathematics with Early Integers 5 Combining Like Terms Definition Example Terms : The addends of an algebraic expression. Constant Term : A term that is only a number. Variable Term : A term that contains a variable....
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This note was uploaded on 03/24/2012 for the course MTH 090 taught by Professor Garypiercy,christopherriola during the Spring '09 term at Moraine Valley Community College.
 Spring '09
 GaryPiercy,ChristopherRiola
 Algebra, Addition, Equations, Multiplication

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