Pre-Algebra Lesson 3-2

Pre-Algebra Lesson 3-2 - 3-2 Solving Equations by Adding or...

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Unformatted text preview: 3-2 Solving Equations by Adding or SubtractingObjective: Solve equations using the addition and subtraction properties of equalities.5-Minute CheckMr. Brown, Ms. Red, and Ms. Black each have a dog. The dogs’ colors are brown, red, and black. A woman owns the black dog. No owner’s name is the same as the color of his or her dog. What is the color of each person’s dog?5-Minute CheckMr. Brown, Ms. Red, and Ms. Black each have a dog. The dogs’ colors are brown, red, and black. A woman owns the black dog. No owner’s name is the same as the color of his or her dog. What is the color of each person’s dog?Mr. Brown – red;Ms. Red – black;Ms. Black – brown3-2 Solving Equations byAdding or SubtractingSubtraction Property of EqualityFor any numbers a, b, and c, if a =b, then a – c = b – c.3-2 Solving Equations byAdding or SubtractingExample 1Solve x + 9 = 5. Check your solution.3-2 Solving Equations byAdding or SubtractingExample 1Solve x + 9 = 5. Check your solution....
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Pre-Algebra Lesson 3-2 - 3-2 Solving Equations by Adding or...

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