Some Algebra Review

Algebraic Equations

100

Solve for X: 

X + 8 = 25

x=17

200

Solve for X: 

X-3=10

X=13

300

Solve for X: 

4x=28

X=7

400

Solve for X:

x/5 = 8

X=40

500

Solve for X:

2x + 5 = 17

X=6

Exponents

100

When you see the following expression, what is the big number called and what is the little number on top of it called?

2⁴

Big number - base number

little number - exponent or power

https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-exponents/v/introduction-to-exponents

200

How can you rewrite 9² in expanded form?

9 x 9

300

How can you rewrite the following in exponential form?

7 x 7 x 7 x 7 x 7 

7⁵

400

What is the value of:

3⁴

81

500

What is the value of:

2³ + 3² - 4²

1

https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-exponents/v/introduction-to-exponents

Order of Operations

100

Simplify the following expression:

62

https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

200

Simplify the following expression:

5

https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

300

3 + 4² * (3 + 2)

83

400

45

500

30

Distributive Property

100

8(4+2) 

48

200

5(x - 3)

5x - 15

300

7 + 9(2x + 3)

18x + 34

400

3(x - 10)

3x - 30

500

x + 10 + 6(x + 2) 

7x + 22

Adding Like Terms

100

Simplify: 

2x + 8x=

10x

200

Simplify: 

4x + 3 + 2x + 8x

14x + 3

300

Simplify: 

3x + 2x + 5 - 2

5x + 3

400

Simplify: 

4x + 2x + 6 +3

6x + 9

500

Simplify: 

2(x + 4) + 5x

7x + 8