Hank is 3 times Bob's age. In 12 years, Hank will be 2 times Bob's age. How old is Bob now?
H = 3B
H + 12 = 2(B + 12) so 3B + 12 = 2(B + 12)
→ 3B + 12 = 2B + 24
→ B = 12
Bob is 12. (Hank is 36)
