7th Grade Expressions, Equations and Inequalities

Distributing (Rainbows)

100

-3(2x+8)

-6x-24

200

6(3x-4)

18x-24

300

2(12x+30)

24x + 60

400

-9(a-5)

-9a+45

500

2.4(x+2)

2.4x+4.8

Combing Like Terms

100

5 + 2x + 3

2x + 8

200

-3 + 3x + 2

3x -1

300

2+ 4x + 3 - 5 

4x 

400

-3.8x - 9 + 2.4x

-1.4x - 9

500

14x - 19 + 23x – 15

37x-34

One Step Equations

100

7x=49

x=7

200

x-14= -9

x=5

300

x/6=12

x=72

400

6.7+x=10

x=3.3

500

1/8x=5

x=40

Two Step Equations

100

x/3 + 5 = 10

x=15

200

-13 + 5x= 7

x=4

300

-7x- 11= 17

x=-4

400

4a +5.6= -2.8

a=-2.1

500

2/5x+12=2

x=-25

Inequalities

100

x+9 < 16

x<7

200

8x ≥ 32

x ≥ 4

300

x/-6< -5

x>30

400

5b+8 > -12

b>-4

500

-9b+7 < 52

b>-5