Answer:Let's first break apart the problem!
Let x = adult tickets
Let y = child tickets
We know from the problem that a total of 336 tickets were sold.
x + y = 336
We also know from the problem the total profit was $4675. We also know that the adult tickets were $15 per ticket and the child tickets were $10 per ticket.
15x + 10y = 4675
Now we need to combine our two-equation by making a common variable. Let's multiply our first equation by 10 and then combine the two equations.
10x + 10y = 3360
Now lets combine the equations
15x 10y = 4675
-10x - 10y = -3360
to get
5x = 1315
x = 263
Therefore there were 263 adult tickets sold.