Answer:
Adult tickets sold = 250
Step-by-step explanation:
Adult tickets sold = x
Student tickets sold = x + 56
The sum of all tickets, then, is:
[tex](x)+(x+56)=556[/tex]
Combining like terms:
[tex]2x+56=556[/tex]
Subtracting 56 from both sides:
[tex]2x=500[/tex]
Dividing both sides by 2:
[tex]x=250[/tex]
Therefore, the adult tickets sold is x = 250 and the student tickets sold is x + 56 = 250 + 56 = 306.