Answer:
Equation:

Student ticket price = $14
Step-by-step explanation:
An adult ticket = $15
Let a student ticket = $x
An adult ticket is half the price of a student ticket plus $8, then an adult ticket

Equate the prices for the adult ticket:

Subtract 8 from both sides:

Multiply this equation by 2:

25 - 4x = 15 - 2x + 10
-10 - 10
15 - 4x = 15 - 2x
-15 -15
-4x = - 2x
no solution