Respuesta :

yaretzi15

Answer:

Sydney is 14

Step-by-step explanation:

Sydney's age: n

Devaughn's age: 2n

Age together: 42

[tex]2n + n = 42 \\ 3n = 42 \\ n = 14[/tex]

This means Sydney is 14.

Hope this helps! Brainliest would be appreciated :)