Respuesta :
X + 55 = 645
-55 -55
X= 590
590 adult tickets were sold.
If you wanna check just do 590 + 55
-55 -55
X= 590
590 adult tickets were sold.
If you wanna check just do 590 + 55
Answer: 350 adult tickets
Step-by-step explanation:
number of adult tickets sold = x
number of student tickets sold = x-55
x-55+x=645
2x-55=645
2x=700
x=350