If 12 is added into a certain number and result is then divided by 2, the result is 20 then the derived equation will be

If 12 is added into a certain number and result is then divided by 2,

1.	If 12 is added into a certain number and result is then divided by 2, the result is 20 then the derived equation will be
A.	(b - 12)⁄2 = 20
B.	(12b)⁄2 = 20
C.	(b + 12)⁄2 = 20
D.	24b = 20
Answer» D. 24b = 20