I don’t think you have to believe that God made the universe look older to make the Bible true. God could have done that, but it’s not mentioned in the Bible. The 6,000/9,000 year old earth is just taken from guys with calculators making assumptions about the text, imo. It’s not in the Bible itself.
Amen to that. ALL of the evidence points to the universe being around 15 billion years old. Doing such a thing would basically make God a liar. The heavens declare God's glory and part of that glory is being able to see galaxies that are more than 12 billion years old. Besides, if God is out of space-time as an author is out of a book that he wrote, time in our universe means nothing to Him.