Equations Review

Properties

100

Which property of addition is used in the following?  
(3 + 9) + 5 = 3 + (9 + 5)

Associative Property

200

Which property of addition is used in the following?  
3x + 4y = 4y + 3x

Commutative Property of Addition

300

Give me an example of the Zero Property of Multiplication

Anything x 0 = 0

400

What is an example of Identity Property of Addition?

Answers Vary. Anything + 0 = Itself

500

Give me an example of the Distributive Property.

Answers Very.

Distributive Property

100

Distribute

3(2x + 6)

6x + 18

200

Distribute. 

5(10x + 5)

50x + 25

300

Distribute.

(4x + 8)4

16x + 32

32 + 16x

400

Distribute.

7(-x + 3)

-7x + 21

500

Distribute.

-7(2x - 6)

-14x + 42

CLT

100

Combine like terms. 

4x - 2x

2x

200

Combine like terms.

3 + 4y + 10 - 3y 

y + 13

300

Combine like terms.

-4x + x + y

-3x + y

400

Combine like terms

a + 2a + y + 3y + 2a

5a + 4y

500

Combine like terms

x + 9y - 6 - 2y

7y + x - 6

Equations

100

Solve for x: 

4 + x = 7

x = 3

200

Solve for x:

5x = 10

x = 2

300

Solve for x.

x - 10 = 11

x = 21

400

Solve the equation: 

x/12 = 13

x = 156

500

Solve for x: 

x/5 = 13

x = 65

CLT w/ Equations

100

Solve for x: 

4x + 6x = 100

x = 10

200

Solve for x: 

4x + 5x + x = 40

x = 4

300

Solve this equation.

5x + 4 - 2x - 2 - 2x = 12

x = 10

400

Solve this equation: 

-4 + 5x + 6x + 4 = 99

x = 9

500

If x/2 = 4, solve 3(x - 2)

18