Answer:
The required equation is 13451 + x = 15340,
1,889 seats are needed.
Step-by-step explanation:
Given,
Original number of seats = 13,451,
Also, the number of people who needed to be seated = 15,340,
Let x seats were added,
So, the new number of seats = 13451 + x
Thus, 15,340 will get the seat,
If total seats = 15340
⇒ 13451 + x = 15340
Which is the required equation,
Subtract 13451 on both sides,
We get,
x = 1889
Hence, 1889 seats are needed to accommodate all the people.