Which of the flowing formulas a correct rewriting of the formula a=6b - 12?

A. b= a- 12/6
B. b= a + 12/6
C. b= a/6 + 12
D. b= 6a - 12

a=6b-12

6b=a+12 Divide with 6

b= a/6 +12/6

b= a/6 + 2