Suppose that the relationship between price, PP, and quantity, QQ, is given by the equation Q=60−4PQ=60−4P. Which of the following equations correctly represents solving Q=60−4PQ=60−4P for PP? P=60+QP=60+Q P=60−4QP=60−4Q P=60−QP=60−Q P=15−14QP=15−14Q P=15−4Q