Vocabulary
In an expression, the parts being added together or subtracted. Example: 4x + 3x + 3y + 7y
What is a term?
8a + 15a
What is 23a
9x - 6x
What is 3x
17w + 15 - 7w - 5
What is 10w + 10
10 + -9
What is 1
Terms that contain the same variable(s) raised to the same power. These terms can be combined. Example: 3x + 9x or 7y + 3Y
What are like terms?
5x + 35 + 3x + 2
What is 8x + 37
8v - (-3v)
What is 11v
19a - 6b - 17a - 3b + 9b - 2a
What is 0
-10 - (-18)
What is 8
A term that contains a number and no variable.
What is a constant
15x + (-5x) + 9
What is 10x + 9
10x - 6 - x
What is 9x - 6
9x + 13y - 6y - 12x
What is -3x + 7y
-19 + 25
What is 6
The number part of a term that contains a variable
ex. The 7 in 7x
What is a coefficient
6p + 16p + 2 + 4p
What is 26p + 2
12x - 9 - (-3x)
What is 15x - 9
19a - 6b - 17a - 3b + 9b - 2a
What is 0
106 - (- 40)
what is 146
A symbol, usually a letter of the alphabet, used to represent a quantity
What is a variable?
-6x - 6 -10x - 2
What is -16x -8
53t - (-20r) + 17 - 10t
What is 43t + 20r +17
-3 x 10 + 24
What is -6