A2. If three times the number $x$ is divided by $x-4$, the quotient is 4 and the remainder is $x-12$. What is $x$?
(A) 16
(B) 14
(C) 12
(D) 10
(E) None of the above.
A2. We consider the basic theorem of division and set up the equation $3 x=4(x-4)+x-12$. We solve the equation and get the solution 14.