You should use this app called desmos to solve this but its the last option
USE PHOTOMATH , it will solve it and show you how to do it , I use it for maths questions like this !!!!!!
Answer:
In three years can be into algebraic terms as: 3 + x. Where 'x' comes to be today's age.
For example, my age in three years will be:
If I'm 24 years right now, My age in three years = 3 + x ⇒ My age in three years = 3 + 24 = 27.
The twentieth digit would be 20. Hope you found this helpful
