One-Step Equations

One-Step +/- Equations

100

a + 3 = 8

5

200

x - 85 = 17

102

300

5.38 + r = 22.3

16.92

400

a + 30 = 120

90

500

a - 112 = 1888

2000

One Step Equations Vocabulary

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

One-Step Multiplication Equations

100

5a = 25

5

200

25n = 625

25

300

18g = 486

27

400

1.2y = 144

120

500

.8x = 56

70

One-Step Division Equations

100

a/9 = 9

81

200

a/7 = 4

28

300

a/21 = 15

315

400

a/12 = 47

564

500

b/53 = 402

21,306

Combine like terms

100

2x - 4x + 9

-2x + 9  or 9+ -2x

200

-5 + 7x -8

-13 + 7x     or     7x + -13

300

2x + 7x -3 -X

8x -3     or   -3 + 8x

400

-8 + -X -3 + 7x

6x -11     or  -11 + 6x

500

-x + -x -3 + 5

-2x + 2    or   2 - 2x