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bu deng shi ( zu ) jie ji de ni yong
Author(s): 
Pages: 17-18
Year: Issue:  1
Journal: School Journal of Mathematics

Keyword:  不等式组取值范围一元一次不等式建立方程解集数轴非负整数解比较法已知条件逆向思考;
Abstract: <正>同学们在学会了求一元一次不等式(组)的解集之后,还需要学会逆用其解集来解决有关问题,下面举例说明.一、比较法例1 若关于x的不等式3x-(2k-3)<4x+3k+6的解集为x>1,试确定k的值.
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