Richard and teo have a combination age of 31. richard is 4 years older than twice teo's age. how old are richard and teo?

You need to find two numbers that add up to 31, and one is 4 years older than twice Teo's age. 

9*2= 18+4= 22

22+9= 31

Teo is 9 years old, and Richard is 22.

I hope this helps!
~kaikers 

Option a : week- amuont paid