Vocabulary

Combining (Addition)

Combining (Subtraction)

Combining Like Terms
(Add & Subtract Mix)

Like Terms OR
Not Like Terms

In an expression, the parts being added together or subtracted.
Example: 4x + 3x + 3y + 7y

What is a term?

8a + 15a + a + 9

What is 24a + 9

21b - 11b - 10 - 12b

What is -2b - 10

-7w - 5 + 17w + 15

What is 10w + 10

Like Terms OR Not Like Terms
7x + 7

NOT Like Terms

Terms that contain the same variable(s) raised to the same exponent. These terms can be combined.
Example: 3x + 9x or 7y + 3Y

What are like terms?

5x + 35 + 3x + 2

What is 8x + 37

12c - 6c - (-30)

What is 6c + 30

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

What is 0

Like Terms OR Not Like Terms
3x - 4x + x

Like Terms

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

What is an expression?

32 + 12t + 16t + 8

What is 28t + 40

5z - 55 - 26 - z

What is 4z - 81

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

What is 2f + 6

Like Terms OR NOT Like Terms
3x + 2y + 2xy

NOT Like Terms

To perform all indicated operations, including combining like terms. When you do this you do not always get a number answer like 25 or 10 or -1. Frequently you get an expression as an answer, like 2x + 5.

What is simplify?

6p + 32 + 16p + 2 + 4p

What is 26p + 34

-7d - (-40) + 8d

What is d + 40

-5r + 3q - 8q - r

What is -6r -5q

Like Terms OR Not Like Terms
3ab + 2ab + 7ba

Like Terms

A symbol, usually a letter of the alphabet, used to represent a quantity that can change.

What is a variable?

m + 20n + 25m + 6n

What is 26m + 26n

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

What is -39j - 36k

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

What is 43t + 20r +17

Like Terms OR Not Like Terms
10xy -3xy + 3x - 4xy

Not Like Terms

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