Expressions

Expression Vocab

100

An alphabetical letter that represents an unknown number or quantity. 

Variable

200

A number that is multiplied by a variable

Co-efficient

]

300

Parts of an expression that are added or subtracted

Terms

400

A mathematical statement that contains at least 2 terms connected by a math operations. 

Expression

500

A term that has a fixed value and DOES NOT contain variables.

Constant

Combine Like Terms

100

6d + 5 - 5d

d + 5

200

3x - 5y - 12x

-5y - 9x

300

4j + 5 - 9 - 2j

-6j - 4

400

12S + 5R  + 4S + 3R

16S + 8R

500

2x² + 5x - 3 - 8x² +2x - 7  

-6x² + 7x - 10

Distribute

100

-4(3x + 8)

-12x - 32

200

6(2g + 6) - 9

12g + 25

300

5(2x + 6)

10x + 30

400

(w + 7) + 4(w + 5)

5w + 27

500

12x - 4(3 + 6x)

-12 - 12z

Factor

100

12x - 4

4(3x - 1)

200

22xy - 88yz

11(2x - 8z)

300

9n - 5n

4n

400

24x -12y  + 132

12(2x - y + 11)

500

76 cd - 19c

19c(4d - 1)

Sub the Variable

100

-4(6 - 3x) - (x - 1)

x = 2

-1

200

(4x - 8) / 2

x = 4

4

300

3(x + 2y - 4x)

x = 3     y = 2

-15

400

-1/3(x + y) + 2/3( x + y)

x = 9      y = 6

5