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3-2 Transforming Equations: Multiplication and Division

3-2 Transforming Equations: Multiplication and Division. Objective: Solve equations using multiplication or division. 3-2 Transforming Equations: Multiplication and Division. Objective: Solve equations using multiplication or division. Goal: Simplify if needed

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3-2 Transforming Equations: Multiplication and Division

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  1. 3-2Transforming Equations: Multiplication and Division • Objective: Solve equations using multiplication or division.

  2. 3-2 Transforming Equations: Multiplication and Division • Objective: Solve equations using multiplication or division. • Goal: Simplify if needed • Sort: variable by itself on one side, numbers on other.

  3. 3-2 Transforming Equations: Multiplication and Division • Objective: Solve equations using multiplication or division. • Goal: Simplify if needed • Sort: variable by itself on one side, numbers on other. • Multiplication and Division are inverse operations, THEY UNDO each other.

  4. 3-2 Transforming Equations: Multiplication and Division • Example 1: Solve 6x = 222

  5. 3-2 Transforming Equations: Multiplication and Division • Example 1: Solve 6x = 222 • 6 6 • I want ONE x not 6x.

  6. 3-2 Transforming Equations: Multiplication and Division • Example 1: Solve 6x = 222 • 6 6 • x = 37

  7. 3-2 Transforming Equations: Multiplication and Division • Example 1: Solve 6x = 222 • 6 6 • x = 37 • Check: 6 ∙ 37 = 222

  8. 3-2 Transforming Equations: Multiplication and Division • Example 1: Solve 6x = 222 • 6 6 • x = 37 • Check: 6 ∙ 37 = 222 • 222 = 222 

  9. 3-2 Transforming Equations: Multiplication and Division • Example 2: Solve 8 = • To get t alone multiply by the reciprocal. • 8 =

  10. 3-2 Transforming Equations: Multiplication and Division • Example 2: Solve 8 = • To get t alone multiply by the reciprocal. 8 =

  11. 3-2 Transforming Equations: Multiplication and Division • Example 2: Solve 8 = • To get t alone multiply by the reciprocal. • 8 =

  12. 3-2 Transforming Equations: Multiplication and Division • Example 2: Solve 8 = • To get t alone multiply by the reciprocal. • 8 =

  13. 3-2 Transforming Equations: Multiplication and Division • Example 2: Solve 8 = • To get t alone multiply by the reciprocal. • 8 = • -12 = t

  14. 3-2 Transforming Equations: Multiplication and Division • Example 2: Solve 8 = • To get t alone multiply by the reciprocal. • 8 = • -12 = t • 8 =

  15. 3-2 Transforming Equations: Multiplication and Division • Example 2: Solve 8 = • To get t alone multiply by the reciprocal. • 8 = • -12 = t • 8 = • 8 = 8

  16. 3-2 Transforming Equations: Multiplication and Division • Example 3:

  17. 3-2 Transforming Equations: Multiplication and Division • Example 3: • 3 ∙ ∙3

  18. 3-2 Transforming Equations: Multiplication and Division • Example 3: • 3 ∙ ∙3 m = -15 -15/ 3 = -5

  19. 3-2 Transforming Equations: Multiplication and Division • Example 3:

  20. 3-2 Transforming Equations: Multiplication and Division • Example 3: Never KEEP Mixed Numbers

  21. 3-2 Transforming Equations: Multiplication and Division • Example 3: • Multiply • By reciprocal

  22. 3-2 Transforming Equations: Multiplication and Division • Example 3: s = 25 

  23. 3-2 Transforming Equations: Multiplication and Division • Hw page 104 1 – 39 odd

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