众所周知,列一元一次方程解应用题最难的莫不过是寻求等量关系了,事实上,如果我们能根据题意分清已知量和未知量,然后通过列表去寻求到等量关系,从而可简易获解,下面分类说明,供同学们学习时参考.1行程问题例1甲骑摩托车、乙骑自行车同时从相距250千米的两地相向而行,经过5小时 It is well-known that the most difficult problem in solving a single-item equation is to seek equality. In fact, if we can distinguish the known and unknown quantities according to the questions, and then seek out the equivalent relationship through the list, we can Easy to understand, the following classification instructions, for students to learn when referencing. 1 Itinerary Problem Example 1 A riding a motorcycle, B riding a bicycle while moving from the two places away from each other 250 km, after 5 hours