Unit 2 Review

Writing Equivalent Expressions by Combining Like Terms

100

2x + 5x =

7x

200

4x + 7 + 2x -4

6x + 4

300

6a² + 4a - 2a² - a

4a² + 3a

400

4y - 8 + 3y + 2

7y - 6

500

5x² + 3x - x² - 7x + 2

4x² - 4x + 2

Writing Equivalent Expressions using the Distributive Property

100

4 (x + 3)

4x + 12

200

-5 (2a -4)

-10a + 20

300

2 (4x + y - 3)

8x + 2y - 6

400

-1/2 (8f - 4)

-4f + 2

500

1/4 (8b + 12)

2b + 3

Solving Multi-Step Equations

100

w/4 - 3 = 2

w = 20

200

8 - 6p = -4

p = 2

300

z/3 + 5 = 8

z = 39

400

3.6 (x - 5) + 2.5 (x + 4)

6.1x - 8

500

17(1/3)x - 7/2x

13x/6

Word Problems

100

A rectangular garden has a length of 3y + 4 feet and a width of 2y - 1 feet. What is the expression for the perimeter of the garden?

10y + 6 feet

200

Carlos is making a necklace using 7m + 3 blue beads and 4m - 5 red beads. How many beads will he use in total?

11m - 2 beads

300

The temperature on Monday was (6n - 2)°F. On Tuesday, the temperature dropped by (4n + 3)°F. What was the temperature on Tuesday?

 2n - 5°F

400

Jamie collected 8p + 7 seashells at the beach. His sister collected 5p - 9 seashells. If they combine their collections, how many seashells do they have in total?

13p - 2 seashells

500

Maria has 5x + 3 dollars in her savings account. She earns 2x - 5 dollars from babysitting and spends 3x + 4 dollars on a new video game. How much money does she have now?

4x - 6 dollars