Concept:Form an equation based on the given relation between present age and age 6 years ago.Explanation:Let Ramesh's present age be x years.Age 6 years ago = x−6.Twice present age = 2x.Three times age 6 years ago = 3(x−6).Subtracting: 2x−3(x−6)=x.Simplify: 2x−3x+18=x ⟹ −x+18=x ⟹ 18=2x ⟹ x=9.Answer:Ramesh's present age is 9 years.