Question

Jim wanted to know the age of his math teacher, Ms. Greenberg. The teacher said that if he added 28 to her age and then doubled it, the total would be 120. How old is Jim's teacher

Answer 1

x+28×2=120
(you just reverse the equation )
120÷2=60-28=32 ☺

Answer 2

120/2 =60 » 60-28 = 32
the teacher is 32 years old