若x+2与﹣5互为相反数,则x的值为_____ .
更新时间:2018-11-22 17:05:24
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【推荐2】比较大小:(1)-![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
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;(2)-(-3)________ |-4|
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