Expressions and Equations

Unit Vocabulary

100

The  3 in this example: 3x   is called the

Coefficient

200

The "p"  in this example:   8p  is called the

Variable

300

3x + 12 = 36 is called an 

Equation

400

What is the name of the number next to the base that tells the number of times to multiply that number by itself?

An exponent.

500

The word inverse is a synonym for?

Opposite

Using the Distributive Property

100

Distribute: 5(6x + 9)

30x +45

200

Distribute: 4( 3k -2)

12k - 8

300

Distribute: 8(p + 7+ 2q

8p + 56 + 16q

400

Distribute: 6 (4c - 2) +10

24c + 2

500

Distribute: 6 (3b + 7) + 5b

23b + 42

x = ?

100

25 + 10x - 25 = 

5

200

7x -28 =14

6

300

9x - 9 = 18 

3

400

x/4 + 9 = 11

8

500

x/5 + 7 = 17

50

-x = ?

100

x/2 - 14 = -20

x= -12

200

3x + 8 = -10

x = -6

300

-2x + 7 = 

x = -32

400

x/-2  - 15 = -35

x = - 40

500

-2x + 4 = 10

x = -3

Solving with the Distributive Property

100

Solve: 6( x - 5) = 18

x = 8

200

Solve: -3(2x - 4) = 18

x= -1

300

Solve:5(4 - 2x) = -14

x = -3.4

400

Solve: -6(x - 4) = 54

x = -5

500

Solve: 2x -14 = -19

x= 2.5