How Old is My Age? Solving an Introductory Question with Variables

  • Thread starter Thread starter pikapika1
  • Start date Start date
  • Tags Tags
    Introductory
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 2K views
pikapika1
Messages
14
Reaction score
0
5 years ago, I was one-sixth age of my brother. In three years my age doubled will match my brother's age. How old is my age.

I tried setting up with 2 variables

1/6(I-5) = B-5

2(I+3) = B+3

and solved for I then i get a fraction.

is there any better approach to this?
 
Physics news on Phys.org
pikapika1 said:
5 years ago, I was one-sixth age of my brother. In three years my age doubled will match my brother's age. How old is my age.

I tried setting up with 2 variables

1/6(I-5) = B-5

2(I+3) = B+3

and solved for I then i get a fraction.

is there any better approach to this?
You posted this in the wrong forum. Regardless, while your second equation is correct, you reversed your B and I in the first.