7th Grade Expressions, Equations and Inequalities

Distributing/Factoring

100

-3(2x+8)

-6x+(-24) or -6x-24

200

6(3x-4)

18x-24

300

1/6(12x+30)

2x+5

400

-9(a-5)

-9a +45

500

2(4x+8)

8x+16

Combing Like Terms

100

14x - 19 + 23x – 15

37x-34

200

-5xy - 12x - 7xy +11y

-12xy-12x+11y

300

11x + 7 + 13x - 22x

-2x+7 or 7-2x

400

-38x - 9 + 24x

-14x - 9

500

6x + 9 + 30x + 45

36x+54

One Step Equations

100

7x=49

x=7

200

x-14= -9

x=5

300

x/6=12

x=72

400

67+x=10

x=-57

500

1/7x=5

x=35

Two Step Equations

100

x/3 + 5 = 10

x=15

200

-13 + 5x= 7

x=4

300

-7x- 11= 17

x=-4

400

4a +56= -28

a=-21

500

2/5x+12=2

x=-25

Integers

100

-10 - 15

-25

200

8 + (-23)

-15

300

(-12)(-3)

36

400

(8)(-12)

-96

500

-9 + 3

-6