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刚进办公室,就听见几个同事在哪儿争论,还以为发生了什么事情.仔细听来,原来几个同事为不等式组中的一些问题在争论:“不等式组的解集如何在数轴上表示出来.”刘老师已经在纸上写出了一个不等式组的例题:2x-1>x+1①x+8<4x-q②要求是把这个不等式组的解集在数轴上表示出来.刘老师说“我今天上课是这样给同学说的,先解不等式①,得z>2,再解不等式②得z>3.因为不等式组的解集是这两个不等式的公共部分,故而不等式组的解集z>3,把不等
When I first entered the office, I heard a few colleagues arguing where and what happened.If you are careful, several colleagues were debating some of the problems in the inequality group: ”How does the solution set of inequality groups be expressed on a number axis “Teacher Liu has written an example of an inequality group on paper: 2x-1> x + 1①x + 8 <4x-q② The requirement is to express the solution set of this inequality group on the number-axis. ”Today I class to classmates say, first solution inequality ①, too z> 2, and then solve the inequality ② was z> 3. Because the solution set of inequalities is the common part of these two inequalities, so inequality group Solutions set z> 3, the range