You look the sky to the east and see and 8 billion light year galaxy then you look the other way west and see?

Question

another galaxy but 10 billion years away. Would that add up to an18 billion years old universe?

Answer 1

Back when the universe was new, just after the Big Bang, light was young and capable of traveling much faster than it can today.

So, a light-year was much further then than now. That explains the vast distances we see today.

Answer 2

No, as a matter of fact, it would tell me that the spot the big bang occured was exactly 14 billion light years between the two!