用一元一次不等式或一元一次不等式组的知识解决实际问题是中考的必考题,这类题常以现实生活中的经济问题为背景.列一元一次不等式或不等式组解决实际问题一定要正确找出实际问题中的不等关系,把实际问题转化为一元一次不等式或不等式组.解这类问题的基本步骤为:审、设、列、解、答. Using the knowledge of one yuan inequality or one inequality inequality group to solve practical problems is a must-examine problem in the examination. Such questions are often based on the economic problems in real life. One column of inequalities or inequalities to solve practical problems must be correctly identified. The inequality in the problem transforms the actual problem into a unitary inequality or inequality group. The basic steps for solving such problems are: reviewing, setting up, listing, solving, and answering.