To find the equation that represents the number of boxes Trina sold, we start with the information given:
Yuri sold 14 boxes, and Trina sold n boxes, with a total of 37 boxes sold by both of them.
The equation representing this situation is:
\[ n + 14 = 37 \]
Now, to find how many boxes Trina sold (n), we can solve the equation:
- Subtract 14 from both sides: \[ n = 37 - 14 \]
- Calculate the right side: \[ n = 23 \]
So, Trina sold 23 boxes.
The correct response is: n + 14 = 37; Trina sold 23 boxes.