Question 821376
Find the data from the description.
You are interested in how many of each ticket was sold, the amount of revenue for each day, and the ticket prices, such prices being the variables.


Senior Ticket:  H dollars per ticket
Student Ticket:  L dollars per ticket


Day 1:  
4 senior tickets and 5 student tickets and revenue $102.
4H+5L=102, and check to understand how the units work in the summed terms.


Day 2:
7H+5L=126


The system of simultaneous equations to solve is:
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4H+5L=102
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7H+5L=126
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The problem description is designed for easy use of the Elimination Method so you can just subtract the first day equation from the second day equation, eliminating the "5L" term, allowing for easily solving for H.
'
(7H+5L)-(4H+5L)=126-102
7H+5L-4H-5L=24
3H+0=24
H=8


Pick EITHER equation to solve for L, now knowing that H=8.