Week 7 Review- Solving 1-step Equations

Vocabulary

100

The number WITH the variable:

B) Coefficient

200

The number that is ALONE (not connected to the variable):

C) Constant

300

The LETTER in a math problem that represents an unknown quantity

A) Variable

400

What is the INVERSE operation of ADDITION?

Example: 4+x=20

Subtraction

500

What is the inverse operation of multiplication?

Example: 4p=12

Division

Solve for x:Addition and Subtraction

100

Solve for x:

x + 12 = 30

x= 18

200

Solve for x:

x - 12 = 100 

x = 112

300

Solve for x:

20 = 16 + x

x = 4

400

Solve for x:

-20+x= 60

x = 80

500

Solve for x:

x - 29.45 = 56.29

x= 26.84

Solve for x:Multiplication and Division

100

Solve for x:

4x=12

x=3

200

Solve for x:

x/3 = 5

x = 15

300

Solve for x:

7x=56

x = 8

400

Solve for x:

x/2 = 83

 x= 166

500

Solve for x:

4 = 40/x

x = 10

Solve for x:Mixed

100

Solve for x:

9 + x =27

x = 18

200

Solve for x:

x-12 = 120

x = 132

300

Solve for x:

5x = 15

x= 3

400

Solve for x:

x/6 = 4

 x = 24

500

Solve for x:

50/x=25

x = 2