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6.1 Solving Addition and Subtraction Equations

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6.1 Solving Addition and Subtraction Equations

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    1. 9/9/2012 1 6.1 Solving Addition and Subtraction Equations LPS

    2. 9/9/2012 2 What You’ll learn: You’ll learn to solve addition and subtraction equations Subtraction Property of Equality Addition Property of Equality

    3. 9/9/2012 3

    4. 9/9/2012 4 Solving Equations Equation Examples Variable Steps in solving an equation Solution

    5. 9/9/2012 5 Subtraction Property of Equality Words: If you subtract the same number from each side of an equation, then the two sides remain equal. Symbols: Arithmetic Algebra 4=4 a=b 4-3=4-3 a – c = b - c

    6. 9/9/2012 6 Addition Property of Equality Words: If you add the same number to each side of an equation, then the two sides remain equal. Symbols: Arithmetic Algebra 5=5 a=b 5+4 = 5+4 a + c = b + c

    7. 9/9/2012 7

    8. 9/9/2012 8 x + 1.2 = 3.5 X + 1.2 = 3.5 x = 2.3

    9. 9/9/2012 9

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