Chapter 9 3 equations and absolute values
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Chapter 9.3 Equations and Absolute Values. By: Jeremy Kang 3/18/13 Period 2. Textbook Page 412 A Problem #9. 9. |7x-2| = 5 7x-2 = 5 +2 +2 7x = 7 /7 /7 x=1. 7x-2 = -5 +2 +2 7x = -3 /7 /7 x = -3/7. Textbook Page 412 B Problem #26. 26. 3|y+6| = 6

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Chapter 9.3 Equations and Absolute Values

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Chapter 9 3 equations and absolute values

Chapter 9.3Equations and Absolute Values

By: Jeremy Kang

3/18/13

Period 2


Textbook page 412 a problem 9

Textbook Page 412A Problem #9

9. |7x-2| = 5

7x-2 = 5

+2 +2

7x = 7

/7 /7

x=1

7x-2 = -5

+2 +2

7x = -3

/7 /7

x = -3/7


Textbook page 412 b problem 26

Textbook Page 412B Problem #26

26. 3|y+6| = 6

/3 /3

|y+6| = 2

y+6 = 2

-6 -6

y = -4

y+6 = -2

-6 -6

y= -8

{-4,-8}


Textbook page 412 c problem challenge 36

Textbook Page 412C Problem (Challenge) #36

36. |3x| = |4x-1|

3x = 4x-1

-4x -4x

-x = -1

/- /-

x = 1

3x = -(4x-1)

3x = -4x+1

+4x +4x

7x = 1

/7 /7

x = 1/7

{1,1/7}


The end

The End


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