To find out how many boxes Trina sold, we can set up the equation based on the information given:
Yuri sold 14 boxes and together they sold a total of 37 boxes.
We can express this with the equation:
\[ n + 14 = 37 \]
To find \( n \), we can solve the equation:
\[ n + 14 = 37 \] \[ n = 37 - 14 \] \[ n = 23 \]
So, Trina sold 23 boxes.
The correct response is:
n + 14 = 37; Trina sold 23 boxes.