Pre-Algebra Chapter 2 Jeopardy

True, False, or Open

100

Is the following equation true, false, or open? Why?

7(x - 3) = 42

Open because it has the variable: x.

200

Is the following equation true, false, or open? Why?

5 + 7 = 12

True because when you add 5 and 7 it equals 12.

300

Is the following equation true, false, or open? Why?

18 + -14 = 32

False because 18 plus -14 equals 4.

400

Is the following equation true, false, or open? Why?

-10(-4) = -40

False because -10 times -4 equals 40.

500

Is the following equation true, false, or open? Why?

6(7 + 11) = 102

False because 6(7 + 11) = 108.

Solving Equations

100

x - 4 = 3

x = 7

200

9x = 63

x = 7

300

x ÷ 10 = 2

x = 20

400

x + -6 = 15

x = 21

500

10 + x + -7 = 8

x = 5

Solving Inequalities

100

12 + x > 14

x > 2

200

x - 32 < 11

x < 43

300

7x ≤ 56

x ≤ 8

400

x ÷ -8 ≥ 6

x ≤ -48

500

-12x ≤ -132

x ≥ 11

Distributing

100

4(9)

36

200

2(3 + 7)

20

300

8(10 + 7)

136

400

-7(3 + 12)

-105

500

-(5 - 2)

-3

Combining Like Terms

100

2x + 6 + 3

2x + 9

200

4 + x + -8

x + -4 or x - 4

300

3x + 6 + 4x

7x + 6

400

10x + 11 - 6x

4x + 11

500

6x - 3x + 12x - 5 + -2x

13x - 5