Using a system of equations, it is found that 225 adult tickets were sold for the school play.
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
A total of 376 tickets were sold for the school play, hence:
x + y = 376 -> y = 376 - x.
There were 74 fewer students tickets sold than adult tickets, hence:
y = x - 74.
Then:
x - 74 = 376 - x
2x = 450
x = 450/2
x = 225.
More can be learned about a system of equations at https://brainly.com/question/24342899
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