Jacob is now 14 years younger than Michael. If 9 years from now Michael will be twice as old as Jacob, how old will Jacob be in 4 years? Choose the correct choice from the following choices.
A) 3  B) 7  C) 9  D) 21  E) 25

Rationale: "jacob = x years , michael = x + 14 years 9 years from now , 2 ( x + 9 ) = x + 23 2 x + 18 = x + 23 x = 5 x + 4 = 9 years answer c"
Answer: C