A group of 4 students went to the movie theater.
They each bought a ticket for $x and spent $10.50 each on snacks.
They spent 4 times x dollars plus 4 times $10.50 or 4x+42 dollars.
A group of 3 adults went to the movie theater and paid twice as much for each of
their tickets as each student, or $2x. The group of adults also spent $10.00
each on snacks.
They spent 3 times 2x dollars plus 3 times $10.00 or 6x+30 dollars.
The group of students spent the same amount as the group of adults.
3x+42 = 6x+30
12 = 3x
4 = x <-- interpreted as $4.00 for student ticket.
What is the cost of each adult ticket?
Twice as much as $4.00 or $8.00.
Edwin