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我们知道,解题需要一定的技巧和方法,但不同的人有不同的方法,只有适合自己的方法才是好方法.学完一元一次不等式的基本解法后,杨老师给同学们留了一道题目,同学们纷纷开动脑筋,给出自己的解法.题目:解一元一次不等式:2x-5>5x-11.晓红的解法:两边同时减去5x,得2x-5-5x>5x-11-5x.合并同类项,得-3x-5>-11.两边同时加上5,得-3x-5+5>-11+5.合并同类项,得-3x>-6.两边同除以-3,得x<2.小军的解法:两边同时减去2x,得2x-5-2x>5x-11-2x.
We know that problem solving requires certain skills and methods, but different people have different methods, and only the method that suits them is a good way. After learning the basic solution of the unary inequality, Yang left a problem for the students , The students have their own brains to give their own solution. Title: Solution Unary inequality: 2x-5> 5x-11. Xiaohong solution: both sides at the same time minus 5x, 2x-5-5x> 5x-11- 5x. Combine items of the same kind to get -3x-5> -11. Add 5 to both sides at -3x-5 + 5> -11 + 5. Combine items of the same type to get -3x> -6. 3, x <2. Xiaojun solution: both sides at the same time minus 2x, 2x-5-2x> 5x-11-2x.