Unit 1 Jeopardy Review

Simplifying Expressions

100

Simplify the following expression:

3x + 5 + 2x +7

5x + 12

200

Simplify the following expression:

7x + 12 - 6x - 5

1x + 7

300

Simplify the following expression:

- 6x - 7x - 8 - 3

- 13x - 11

400

Simplify the following expression:

4.5x + 2.6 - 3.8x - 1.2

0.7x + 1.4

500

Simplify the following expression:

(1/2)x - 2 + (8/2)x - 9 + 1

(9/2)x - 10

Simplifying Expressions With Distribution

100

Simplify the following expression:

2(4x + 5)

8x + 10

200

Simplify the following expression:

3(2x + 9) + 2x - 5

8x + 22

300

Simplify the following expression:

- 4(3x + 1) - 2x - 2

- 14x - 6

400

Simplify the following expression:

2(4 + 8x) + 4(1x - 1) 

20x + 4

500

Simplify the following expression:

3.2(5x - 1) - 2.6(4x + 1)

5.6x - 5.8

Solving Two-Step Equations

100

Solve the following equation: 

6x + 9 = 21

x = 2

200

Solve the following equation: 

8 + 5x = 43

x = 7

300

Solve the following equation: 

9x - 18 = 9

x = 3

400

Solve the following equation: 

- 4x + 7 = 15

x = - 2

500

Solve the following equation: 

- 6 - 10x = - 56

x = 5

Vocabulary

100

What is the opposite operation of multiplication?

Division

200

When solving an equation, what you do to the left, you must do to the _____.

right

300

When you simplify an expression, you combine ______ terms.

like

400

When you have terms inside parentheses, you have to ________.

(Hint: I'm not looking for "multiply".)

distribute

500

To check your work, you plug your solution for x back into the original equation. What is this process called?

Substitution