Richard and Teo have a combined age of 39. Richard is 9 years older than twice​ Teo's age. How old are Richard and​ Teo?

Question

how old are teo and richard

Answer 1

R + T = 39

R = 9 + 2T

9 + 2T + T = 39

9 + 3T = 39

3T = 30

T = 10

R + 10 = 39

R = 29.

Richard is 29

Teo is 10

Answer 2

T represents Teo's age

2T + 9 represents Richard's age

T + 2T + 9 = 39

CAn you solve for T and answer?