One Step Adding or Subtraction
x + 6 = 18
x = 12
9x = 27
x = 3
2x + 10 = 14
x = 2
k/2 - 9 = 3
k = 24
Division often looks like a ___________.
Fraction
x - 12 = 87
x = 99
x/10 = 6
x = 60
3x + 15 = 24
x = 3
m/3 - 10 = 5
m = 45
Variable
The letter in an equation that represents an unknown value
x + 8 = -4
x = -12
16x = 64
x = 4
2x - 4 = 20
x = 12
5 + k/4 = 8
k = 12
Inverse Operation
Math operations or actions that are opposites and undo each other
x - 11 = -7
x = 4
x/3 = 25
x = 75
-12b - 4 = -28
b = 2
4 + a/-2 = 6
a = -4
Reciprocal
The inverse of a value or a number
34 + x = 14
x = -20
x/4 = 23
x = 92
30 = 2 - 4x
-7 = x
- 2 = y/-3 - 12
y = -30
Isolate
to get by itself