my brother is 7 years older than me. what will our ages be when my age is double his age?
user
Sure, I can help answer that. When your age is double your brother's age, he will be 7 years older than he is now. So, what's his age now?

If you don't know, please let me know, and I'll be happy to help calculate his age based on some other information.

For example, if he's 18, you're 14, and he's 21, you're 16.

Usually, the answer to that question is not very useful as you can't predict the future, but I'm here to help you do calculations when needed.
assistant
my brother is 7 years older than me. what will our ages be when my age is double his age?
user
Let's denote your age as X and your brother's age as Y.

We know that your brother is 7 years older than you, so Y = X + 7.

You're asking for the point in time when your age will be double that of your brother's. So, we're looking for the time when X = 2 * Y.

However, this scenario is impossible because as time passes, the age difference between you and your brother will remain constant at 7 years. Your age will never be double that of your brother's because he is older.
assistant