7x/123456-4x/89765=0的解是
人气：318 ℃ 时间：2020-02-03 14:11:35
解答
一元一次方程,就一个解
然后观察明显可知7/123456不等于4/89765
于是方程转化为AX=0,A=7/123456-4/89765,所以A不等于0,所以X=0
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