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Solving Two Step Equations. Jennifer Mellske Spring 2012. Do Now. Solve for x: (-5) + (-4) = x 3x = 24 x + 15 = 25. TLW demonstrate knowledge on how to solve two step equations involving integers.

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solving two step equations

Solving Two Step Equations

Jennifer Mellske

Spring 2012

do now
Do Now
  • Solve for x:
      • (-5) + (-4) = x
      • 3x = 24
      • x + 15 = 25
tlw demonstrate knowledge on how to solve two step equations involving integers
TLW demonstrate knowledge on how to solve two step equations involving integers
  • Example 1a. Do Undo

4x + 8 = 20

- 8 - 8

4x = 12

4 4

x = 3

tlw demonstrate knowledge on how to solve two step equations involving integers1
TLW demonstrate knowledge on how to solve two step equations involving integers
  • Example 1b. Do Undo

20 = 4x + 8

- 8 - 8

12 = 4x

4 4

3 = x

tlw demonstrate knowledge on how to solve two step equations involving integers2
TLW demonstrate knowledge on how to solve two step equations involving integers
  • Example 2. Do Undo

6x – 12 = 36

+ 12 + 12

6x = 48

6 6

x = 8

tlw demonstrate knowledge on how to solve two step equations involving integers3
TLW demonstrate knowledge on how to solve two step equations involving integers
  • Example 2. Do Undo

x – 1 = 4

2

+ 1 + 1

x = 5

2

2 ∙ ∙ 2

x = 10

tlw demonstrate knowledge on how to solve two step equations involving integers4
TLW demonstrate knowledge on how to solve two step equations involving integers
  • Example 2. Do Undo

-7x + 9 = 49

- 9 - 9

- 7x = 40

- 7 - 7

x = -5

exit slip
Exit Slip
  • Solve for x:

27 = 8x - 13