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qiao she fu yuan miao lie fang cheng
Author(s): 
Pages: 26-28
Year: Issue:  11
Journal: School Journal of Mathematics

Keyword:  解决问题列方程应用题解题方法方程解决代数式辅助未知数实际问题已知条件;
Abstract: <正>列方程解决应用题,是一种重要的解题方法.但有些较复杂的应用题,乍看起来好像缺少条件,这时不妨引入辅助未知数,在已知条件与所求答案之间架起一座"桥梁",以便理顺各个量之间的关系,列出方程,解决问题.
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