VOCAB
The symbol, usually a letter, that represents a quantity that can change or is unknown
What is a variable
-6k + 7k
k
v - 7 = -6
v = 1
-5 - 5x = -15
x = 2
2 (2x + 4) = 4x + 3
No solution
A value that does not change
What is a constant
n + 10 + 2n - 3
3n + 7
17 = a / 25
a = 425
(x / 2) +1 = -4
x = -10
x2 = 16
x = 4
BONUS: x = -4
A phrase containing numbers, variables, and/or operators that represents a single value but does not include an equal sign
What is expression
7(3b - 2)
21b - 14
r + 5 = -15
r = -20
-12 (p + 3) = 156
p = -16
(x3 )3
x9
Addition, Subtraction, Multiplication, Division
What are operations
-8(1 + 2n) + 6n
-10n - 8
43k = -2451
k = -57
-6 (r - 2) = -30 + 8r
r = 3
(6n4)(8n2)
48n6
The undoing or reverse of an operation
What is inverse
7(4 - 2m) + 6(2m - 4)
-2m + 4
- 168 / a = -24
a = 7
4x + 6 = 2 (2x + 3)
infinite solutions
(2n + 3)(5n - 8)
10n2 - n - 24