Suppose that the relationship between price, P, and quantity, Q, is given by the equation Q = 150 - 5P. Which of the following equations correctly represents solving Q = 150 - 5P for P?
A) P = 150 + Q
B) P = 30 - 1/5Q
C) P = 150 - Q
D) P = 30 - 5Q
E) P = 150 - 5Q
