Lesson 8 Activity

Solve

100

2x + 5 = 25

2x = 20

X = 10

200

 20 - x = 30

-x = 10

X = -10

300

-4x = -36

x = 9

400

-18 + x = -12

x = 6

500

6x - 9 = 45

6x = 54

X = 9

Combine Like Terms

100

4x + 12 + 5x - 18

9x - 6

200

 -18x + 5 - 9

-18x - 4

300

  -10 + 2x - 3

2x - 13

400

 7x + 20 - 9x - 14

-2x + 6

500

12x + 5 - 7x - 13

5x - 8

Distributive Property

100

2(x - 13)

2x - 26

200

 -3(x - 4)

-3x + 12

300

 -(x - 2)

-x + 2

400

5(4 - 2x)

20 - 10x

500

 3(x + y + 7)

3x + 3y + 21