Final answer:
The equation 75x - y = 450 represents a linear equation in two variables, x and y.
Step-by-step explanation:
The equation given, 75x - y = 450, represents a linear equation in two variables, where x and y are the variables. In this equation, the coefficient of x is 75. To find the amount of x and y that satisfies the equation, we need more information or another equation. Without additional information, it is not possible to determine specific values for x and y.