同学们在面对列一元一次方程解应用题的时候,常常感到很棘手,困难主要体现在两个方面:一是难以从实际问题中找出相等关系,列出相应的方程;二是对数量关系稍复杂的方程,常常理不清楚基本量,也不知道如何用含未知数的式子来表示这些基本量的相等 Students face the column one dollar equation solution to the problem, often feel very difficult, the difficulty is mainly reflected in two aspects: First, it is difficult to find the equivalent relationship between the actual problems, lists the corresponding equation; Second, the number of The relationship between the more complex equations, often do not understand the basic amount, do not know how to use an unknown number of equations to represent the equality of these basic quantities