An equation is given: 12x - 7= 9x + 16
In order to solve the equation for, which of the following is true?

A. A possible equivalent equation is 12x - 9x - 7= 9x - 9x + 16.
B. A possible equivalent equation is 12x + 9x - 7= 9x + 9x + 16.
C. A possible equivalent equation is 12x - 7= 9x + 16 + 7.
D. None of the above are true.