Equations

Addition and Subtraction

100

x + 7 = 15

x = 8

200

x - 15 = 39

x = 54

300

58 = 47 + x

x = 11

400

-7 = 15 - x

x = -22

500

2/3 + x = 3/8

x = 7/24

Multiplication and Division

100

3x = 42

x = 14

200

-64 = 4x

x = -16

300

x/5 = 3

x = 15

400

10 = -x/7

x = -70

500

-12x = -288

x = 24

Two-Step Equations

100

2x + 4 = 10

x = 3

200

5x - 7 = -42

x = -7

300

-7y + 3 = -25

y = 4

400

17 = -19 - 6x

x = 6

500

-2 + 15x = -17

x = -1

Multi Step Equations

100

3(x+5) - 21

x = 2

200

5(x - 2) = -30

x = -4

300

49 = -7(6 + x)

x = -13

400

2/3(x + 6) = 10

x = 9

500

64 = 8/11(x - 10)

x = 98

Test Your Luck with Inequalities

100

Write an inequality that represents the following statement: "To see a certain movie, you must be at least 13 years old."

x ≥ 13

200

Write an inequality that represents the following statement: "Rain turns into snow when the temperature is less than 32 degrees F."

x < 32

300

x + 9 ≤ 4

x ≤ -5

400

4x + 1 ≥ 25

x ≥ 6

500

-2x + 9 > 33

x < -12