1. Tuesday, October 2, 2012
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Page 37; odd or even

2. Warm-Up
1. 10 +2/5(10 - 5x) 2. 1 + 4•2 − 5 + (2 + 2•3)2
30-10x = ________+ 64; = 4 + 64 = 68
3. 10 - ¾(3x + 2) 4. 3(5 + x) = 2x + 18
40 - 9x + 6; 46 - 9x 15 + 3x = 2x + 18; x = 3
5. ( The reciprocal of 4/5) x (The opposite of 3/8)
6. 8(7 - x) = 4(3x - 16) 7. 2x - 3 + 5x - 8 = -6x + 54
8. -1 - (-10) 9. 4 − |5 – 6| + |2 – 8|
10. 2/3x - 7 = 10 11. ½(3x + 2) - 5 = 2/3x - 1

3. Class Notes/Practice Problems
Equations with Decimals
Step 1: Combine any constants if easier
Step 2:
Step 3: Solve as Usual
1. 4.6 = 4m - 3.4 2. 0.01x - .1 = -x + 10
3. .25m + .1m = 9.8 4. .5(x -12) = 4

4. Class Notes/Practice Problems
Absolute Value Equations
Know The Rules:|x|= 1; x = 1, -1
Rule: Because the value inside could be positive or
negative, two equations must be written and solved.
Solve:|2x + 5| = 11, Then graph the solution set
The two equations are:
1. |2x + 5| = 11 2. |2x + 5| = - 11
2x = 6; x = 3 2x = -16; x = -8

5. Absolute Value Equations
Ex. 2: 4|2 - x| = 16
The two equations are: 1). 4|2 - x| = 16 2). 4|2 - x| = - 16
1). 8 - 4x = 16; - 4x = 8; x = - 2 2). 8 - 4x = - 16; - 4x = -24; x = 6
Ex. 3

6. Class Work:
Page 25; All
Page 37; odd or even