Question

Subtract 10 from Thanh's age and double the result, and you get Xuyen's age. Xuyen is 22. How old is Thanh?

Answer 1

let thanh age be x

Explanation:

xuyen age= 22

therefore= (X-10)2=22

=2x-20=22

=2x=44

x=22

thanh age is 22