Vocabulary
Combining Like Terms 1(Add)
Combining Like Terms 2
(Add & Subtract)
100
In an expression, the parts being added together or subtracted. Example: 4x + 3x + 3y + 7y
terms
100
8a + 15a + a + 9
24a + 9
100
17w + 5 - 7w + 15
10w + 20
200
Terms that contain the same variable(s). These terms can be combined. Example: 3x + 9x or 7y + 3y
like terms
200
5x + 35 + 3x + 2
8x + 37
200
19a + 6b - 17a - 4b + 9b - 2a
11b
300

A mathematical phrase that contains numbers, operations, and/or variables (but no = sign). Example: 5x + 4y + 5 - 2x

algebraic expression

300
32 + 12t + 16t + 8
28t + 40
300
2f - 1f - 6 + 5f
6f - 6
400
The mathematical term for the number next to the variable. (example: 2x)
coefficient
400
6p + 32 + 16p + 2 + 4p
26p + 34
400
5r + 5q -2q - r
4r + 3q
500
A symbol, usually a letter of the alphabet, used to represent a quantity that can change.
variable
500
m + 20n + 25m + 6n
26m + 26n
500
53t + 20r + 17 - 10t - 17 - 20r
43t
M
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