Chapter 4

One Step Equations

100

x+15=29

x=15

200

x=0.5

x=0.5

300

-15x=75

x=-5

400

-x/7=-12

x=84

500

4/7x=12

x=21

Two Step Equations

100

3x+4=22

x=6

200

-6x-4=-16

x=2

300

-8x+6=-26

x=4

400

0.7x-0.6=3.6

x=6

500

3/4x+5=17

x=16

Writing Inequalities

100

x is less than 16

x<16

200

x is greater than 204

x>204

300

x is at most 16

x<=16

400

Twice a number minus 6 is at least 24

2x-6>=24

500

a third of a number plus 12 is no more than -26

1/3x+12<=-26

One Step Inequalities

100

x +9>12

x>3

200

x-15<=21

x<=6

300

0.9x<10.8

x<12

400

-x/12>=12

x<=-144

500

6/7x>36

x>42

Two Step Inequalities

100

3x+4>22

x>6

200

-6x-4>=-16

x<=2

300

-6x+12>=60

x<=-8

400

3/4x-1/2<5/8

x<3/2

500

2/3x-14>28

x>63