Solve for x:

4x + 12 = 8 (given)

4x = -4 (subtraction)

x = -1
Solve for x:

4x + 12 = 8 (given)

4x = -4 (subtraction)

x = -1

What is the reason for the last step in the argument?
A) division
B) addition
C) subtraction
D) symmetric property