Review

Distribution

100

3(x + 5)

3x+15

200

4(2x − 3) 

8x-12

300

−2(x + 7)

-2x-14

400

5(3x + 2) − 4

15x+6

500

−3(2x − 5) + 6x

15

Factoring

100

4x+2

2(2x+1)

200

6x + 12

6(x+2)

300

9x − 6

3(3x-2)

400

12x+18 

6(2x+3)

500

15x-20

5(3x-4)

Mean and IQR

100

Find the Mean of 5, 7, 8, 10

7.5

200

Find the Mean of 10, 12, 14, 16, 18

14

300

Find IQR: 1, 4, 6, 8, 10, 12, 14

8

400

Find IQR: 3, 5, 7, 9, 11, 13

6

500

Find IQR: 5, 7, 9, 10, 12, 15, 18, 20

8.5

2 Step Inequalities

100

3x-5>10

x>5

200

-2x+10<14

x>-2

300

x/-3 -5>2

x<-21

400

-5 - x/4 > 2

x<-28

500

7> -2/3x - 5

x>-18

2 Step Equations

100

2(x + 4) = 12

2

200

3(x − 1) = 9

4

300

61=-9c+7

c=-6

400

-b/6-50=-49

b=-6

500

−z/5-37=-18

z=-95