One-Step Equations

1

100

a + 3 = 8

5

200

x + 8 = 12

4

300

a + 66= 21

-45

400

a + 30 = 120

90

500

a + (-12) = 86

86

2

100

-5-a=8

-13

200

-10-x=30

-40

300

a - 56 = 8

64

400

3-x=10

-7

500

a - 48= 28

76

3

100

Give me an example of a variable

any letter

200

Define inverse operation

The opposite, signs that undo each other

300

What is the inverse operation of addition? 

Subtraction

400

Name the 4 operations

addition, subtraction, multiplication, division

500

What can you do to check your answer when solving?

Plug your answer in/ substitute 

4

100

5a = 25

5

200

25n = 625

25

300

18g = 486

27

400

12y = -144

-12

500

-8x = 56

-7 

5

100

a/9 = 9

81

200

a/7 = 4

28

300

a/-10 = 4

-40

400

a/12 = -4

-48

500

20/x=5

4