Question: Solve the system: 6x + 5y = 45 and 4x - 3y = 1. What is the value of y?
Options:
Correct Answer: 5
Solution:
From the first equation, 5y = 45 - 6x. Substituting into the second gives 4x - 3(45 - 6x)/5 = 1. Solving gives y = 5.