Qd=14-3PdQd/dP=-3Qs=2+6PdQs/dP=614-3P=2+6P12=9P均衡价格：P=4/3均衡数量：Q=2+6×4/3=10需求价格弹性：Ed=dQd/dP·P/Q=-3×(4/3)/10=-0.4供给价格弹性：Es=dQs/dP·P/Q=6×(4/3)/10=0.8
