Problem: a man is 24 years older than his son . in three years , his age will be twice the age of his son . the present age of the son is
Rationale: "solution let the son ' s present age be x years . then , man ' s present age = ( x + 24 ) years . then â € ¹ = â € º ( x + 24 ) + 3 = 2 ( x + 3 ) â € ¹ = â € º x + 27 = 2 x + 6 x = 21 . answer d"
annotated_formula: divide(subtract(24, subtract(multiply(const_2, const_2), const_2)), subtract(const_2, const_1))