Five years ago, Linda was twice as old as Jacob. Now, Linda is 15 years old. Which equation can be used to find Jacob's current age, j?

Question

asked Sep 12, 2018 6.6k views

1 Answer

Adeyinka · Answer 1 · 2018-09-18T07:29:13+0000

If Linda is now 15 then 5 years ago the was 10 years old.
That means that Jacob was 5 years old 5 years ago (10-5=5)

Using

to represent Linda's age and

for jacobs age.
jacob will always be 5 years younger than Linda so

j=l-5