Question

Adams father is 45. He is 15 years older than twice Joe's age (j). How old is Joe?

Answer 1

Answer:

Joe is 15 years old

Explanations:

Let the age of Adam's father be y

y = 45

Let Joe's age be x

Adam's father is 15 years older than twice Joe's age

y = 15 + 2x

Since y = 45

45 = 15 + 2x

45 - 15 = 2x

30 = 2x

x = 30/2

x = 15

Joe is 15 years old