在竞赛题中常可见到这样一类应用题,根据题意只能列一个二元一次方程,大部分同学因不会解这个方程而导致解题半途而废,实际上,这类方程往往因其只求正整数解而有以下两种特殊解法: 一、根据方程中常数项的大小确定 Such applications can often be seen in competition questions. According to the meaning of the questions, only a binary one-time equation can be listed. Most of the students will not solve the equation and cause the problem to be solved halfway. In fact, this type of equation is often only due to The positive integer solution has the following two special solutions: First, according to the size of the constant term in the equation