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Combining Like Terms
Orders of Operations
Vocabulary
Distributive Property
Evaluating Expressions
100

x - 7 + 8x

9x - 7

100

(6 x 2) + 3

15

100

Define Variable 

Variable is a placeholder, generally a letter. 

100

2(2x + 4)

4x + 8

100

x + y - z ; use x = 2, y = 2, z = 1

3

200

2x + 8 - x - 9

x - 1 or x + -1

200

2(12/3 + 4)

16

200

Define Distribute

To give out... In math, mainly used for multiplication. 

200
-3(-2x + 3)

6x - 9 or 6x + -9

200
m(m + p) ; use m = 3, p = 2 

15

300

-4x + 17 - 2x - 5

-6x + 12 

300
(-11 + 1 - 4) / -7
2
300

Define Expression

NO EQUAL SIGN. 

300

-9(2x - 3z)

-18x + 27z or -18x + 27z

300

h + 3j ; use h = 2, j = 2

8

400

-x - y + 3x - z

2x - y - z or 2x + -y + -z

400

(6 + 4 - 2)2 / 8

8

400

Define Simplify

To break down, get an expression to the smallest form. 

400

6(x - y + 7)

6x - 6y + 42 or 6x + -6y + 42

400

3x(x + y) ; use x = 2, y = 6

48

500

-3x + 7y - 8z + 5x - 5y - 5z

2x + 12y - 13z or 2x + 12y + -13z

500

((8(4/2))/8)2 / 2

2

500

Define Evaluate

To determine a single number through an expression. Plug and chug. 

500

-5(-2x + -3y - 5z)

10x + 15y + 25z

500
2x + 3jz ; use x = 2, j = 2, z = 3

22