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  • NAME DATE PERIOD Lesson 3 ReteachLesson 3 Reteach Adding Linear Expressions Example Add (2x + 4) + (-x + 2). Step 1 Model the linear expressions. x x 1 1 1 1 + -x 1 1 2x 4+-+ x + 2
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Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use. NAME ___________________________________________________ DATE _____________________ PERIOD __________ Lesson 3 Reteach Adding Linear Expressions Example Add (2x + 4) + (-x + 2). Step 1 Model the linear expressions. x x 1 1 1 1 -x + 1 1 2x 4 + -x 2 + + Step 2 Group tiles with the same shape. Then remove any zero pairs. 1 1 1 1 1 1 -x x x x + 6 So, (2x + 4) + (-x + 2) = x + 6. Exercises Add. Use models if needed. 1. (2x + 6) + (5x + 1) 2. (-x + 6) + (-5x + 8) 3. (x - 7) + (3x - 3) 4. (-x + 7) + (-2x + 6) 5. (x + 3) + (-5x + 4) 6. (-3x - 1) + (-6x + 2) 7. (2x + 3) + (-2x + 7) 8. (12x - 5) + (-3x + 8) A linear expression is an algebraic expression in which the variable is raised to the first power. You can use models to add linear expressions. Math Accelerated • Chapter 7 Algebraic Expressions

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    NAME ___________________________________________________ DATE _____________________ PERIOD __________

    Lesson 3 ReteachAdding Linear Expressions

    Example Add (2x + 4) + (-x + 2).

    Step 1 Model the linear expressions.

    x x1 11 1

    -x+11

    2x 4+ -x 2++

    Step 2 Group tiles with the same shape. Then remove any zero pairs.

    11

    11

    11

    -x x x

    x + 6

    So, (2x + 4) + (-x + 2) = x + 6.

    Exercises Add. Use models if needed. 1. (2x + 6) + (5x + 1) 2. (-x + 6) + (-5x + 8)

    3. (x - 7) + (3x - 3) 4. (-x + 7) + (-2x + 6)

    5. (x + 3) + (-5x + 4) 6. (-3x - 1) + (-6x + 2)

    7. (2x + 3) + (-2x + 7) 8. (12x - 5) + (-3x + 8)

    A linear expression is an algebraic expression in which the variable is raised to the first power. You can use models to add linear expressions.

    Math Accelerated • Chapter 7 Algebraic Expressions

    Program: Pre-Algebra

    Vendor: Aptara

    Component: ANC_C07_L3

    Grade: AMPDF Pages

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