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Solving Two Step EquationsPowerPoint Presentation

Solving Two Step Equations

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Solving Two Step Equations

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Solving Two Step Equations

Jennifer Mellske

Spring 2012

- Solve for x:
- (-5) + (-4) = x
- 3x = 24
- x + 15 = 25

- Example 1a. Do Undo
4x + 8 = 20

- 8 - 8

4x = 12

4 4

x = 3

- Example 1b. Do Undo
20 = 4x + 8

- 8 - 8

12 = 4x

4 4

3 = x

- Example 2. Do Undo
6x – 12 = 36

+ 12 + 12

6x = 48

6 6

x = 8

- Example 2. Do Undo
x – 1 = 4

2

+ 1 + 1

x = 5

2

2 ∙ ∙ 2

x = 10

- Example 2. Do Undo
-7x + 9 = 49

- 9 - 9

- 7x = 40

- 7 - 7

x = -5

- Solve for x:
27 = 8x - 13