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列方程解应用题的关键是找等量关系,有些同学在学习列方程解应用题时,不知如何从实际问题中抽象出等量关系,下面介绍一些找等量关系的方法。一、分析题目关键句中的相等关系例1:某纺织厂甲、乙两车间共有550人,由于甲车间新增设备,故从乙车间调往甲车间10人,现在甲车间人数是乙车间人数的1.5倍,求甲、乙两车间原来的人数。分析:本题中“从乙车间调往甲车间10人,现在甲车间人数是乙车间人数的1.5倍”
The key to solve the column equation solution is to find the equivalent relationship, some students solve the problem of column equations solution, I do not know how to abstraction from the actual problem of the same amount of relations, here are some ways to find the same amount of relations. First, the analysis of the topic of the key relationship between the equal relationship Example 1: A textile mill a, a total of 550 workers in the two workshops, a workshop due to the new equipment, it transferred from the B workshop to a workshop 10, a workshop now is the number of B workshop The number of 1.5 times, for A, B two original number of workshops. Analysis: In this question, “transferred from the B workshop to a workshop 10, now a workshop is 1.5 times the number of B workshop”