Vocabulary Review
A letter or symbol that represents an unknown quantity
A variable
-10w - 50 + 17w + 31
7w - 19
The property that states a(b + c) = ab + ac
The distributive property
19a - 6b - 17a - 3b + 9b - 2a
0
The difference between an equation and an expression
Equals sign
-21f - 12f + 36 + 18
-15f + 36
Like terms
The terms that contain the same variable
-44r - 77q + 20q - 19r
-63r - 57q
A number in front of a variable
A coefficient
53t - 65t + 100r + 17 - 47t
-59t + 100r + 17