Vocabulary
Combining (Addition)
Combining (Subtraction)
Simplify The Expression
Combining Like Terms
(Add & Subtract Mix)
100

Parts of an algebraic expression separated by an addition or subtraction sign

Term

100

8a + 15a + a + 9

24a + 9

100

21b - 11b - 10 - 12b

-2b - 10

100

2(3 + 3u)

6 + 6u

100

-7w - 5 + 17w + 15

10w + 10

200

The numerical factor of a term that contains a variable or The number in front of the variable 

Coefficient 

200

5x + 35 + 3x + 2

8x + 37

200

5z - 55 - 26 - z

4z - 81

200

3(8 + 5m)

24 + 15m

200

19a - 6b - 17a - 3b + 9b - 2a

0

300

A term without a variable or A number that never changes 

Constant

300

32 + 12t + 16t + 8

28t + 40

300

12c - 6c - (-30)

6c + 30

300

(4d + 2)(5)

20d + 10

300

-2f - 1f - (-6) + 5f

2f + 6

400

Terms that contain the same variables

Like Terms 

400

13x + 19z + 7x + 5z + 6y


20x + 24z + 6y


400

-7d - (-40) + 8d

d + 40

400

8(9 + 4t)

72 + 32t

400

-5r + 3q - 8q - r

-6r -5q

500

To put an expression in its simplest form by combining like terms

Simplify

500

32x + 18t + 11y + 25x + 15t + 14y

57x + 33t + 25y

500

-15j - 18k - 24j - 18k

-39j - 36k

500

6(8 + 3r + 9z)

48 + 18r + 54z

500

53t - (-20r) + 17 - 10t

43t + 20r +17