Can someone please help me on this?

Answer: G=1/3x -2 , Georgia's age will be 7 years old.
Step-by-step explanation: Everything in on the attachment, I'm so sorry it took about 30 minutes for me because my computer crashed about 12 times. I really wanted you to understand this problem, so I tried my hardest so that you can know what I'm doing.
Can I have the brainliest or a heart?
If you need further help, message me on brainly or message me on instagram.
@jessmyybest
Your welcome!