To find out how many boxes Trina sold, we start with the information given:
Yuri sold 14 boxes and together they sold a total of 37 boxes. Therefore, we can set up the equation:
\[ n + 14 = 37 \]
where \( n \) represents the number of boxes Trina sold.
Now, we can solve for \( n \):
\[ n + 14 = 37 \] Subtract 14 from both sides: \[ n = 37 - 14 \] \[ n = 23 \]
So, Trina sold 23 boxes.
The correct response is:
- \( n + 14 = 37 \); Trina sold 23 boxes.