Algebra Review!

Vocabulary

100

A letter used to represent a number is called a

variable

200

An expression which contains variables is called an

algebraic expression

300

The numbers and variables in an expression are called...

(example: 3x + 5 has two what?)

terms

400

If an expression has an equal sign, it's actually an...

(example: x + 2 = ?)

equation

500

When a number is attached to a variable, it's called a...

coefficient

Write Expressions

100

Write the expression: Add 4 to x

x + 4

200

Write the expression: Subtract x from 8

8 - x

300

Write the expression: Multiply x by 7

7x

400

Write the expression: Half of x

x/2

500

Write the expression: Subtract i from 9. Then divide by 2

9 - i/2

Evaluate Expressions

100

Evaluate y + 2 when y=9

11

200

Evaluate y - 5 when y = 9

4

300

Evaluate the expression 9y when y = 9

81

400

Evaluate y ÷ 9 when y = 9

1

500

Evaluate the expression y + 5 when y = 9

14

Distributive Property

100

Expand 2(x+1) by using the distributive property

2x + 2

200

Expand 3(y + 3)

3y + 9

300

Expand -4(b+a)

-4b - 4a

400

Expand 5(2 + 3x)

10 + 15x

500

Expand 4(6c - 8)

24c - 32

Mystery

100

Solve: -4 x - 8

32

200

Factor 2x + 4 (pull out the greatest common factor)

2(x + 2)

300

Solve -32 ÷ 8

-4

400

Factor 4x + 16

4(x + 4)

500

Solve - 5 - 17 = ?

-22