一、方程思想所谓方程思想 ,是指把一个数学问题通过适当的途径转化成方程 (组 ) ,从而使问题得到解决。它在探索解题思路时经常使用 ,尤其对解决与等量有关的数学问题行之有效。例 1.已知 - 4 xm+ nym-n与 23x7-my1+ n是同类项 ,则 m、n的值分别为。 (1998年山西省中考题 )解 First, the equation of thought The so-called equations of thought, refers to a mathematical problem through an appropriate path into an equation (group), so that the problem can be solved. It is often used when exploring ideas for solving problems, especially for solving mathematical problems related to equal amounts. Example 1. Known - 4 xm+ nym-n and 23x7-my1+ n are similar items, then the values ​​of m and n are respectively. (1998 Shanxi Provincial Examination Questions) Solution