Diego is 78 years old. Kendra is 32 years old. How many years until Diego's age is 2 times Kendra's age?

Answer 1

78+ x = 2(32+x) = 64 + 2x

x = 78-64 = 14

x = 14 years from now Diego will be twice Kendra's age

in 14 years Diego will be 78+14 = 92 (if still alive. it never hurts to check the reality of whatever answer you come up with, If it's too off, recheck the arithmetic)

in 7 years Kendra will be 32+14 = 46

46 times 2 = 92