方程组x+y=8mx−2y=2m的解满足2x-5y=-1,求m的值.
其他人气:806 ℃时间:2020-04-11 00:31:44
优质解答
解方程组
得:
,
将x=6m,y=2m代入2x-5y=-1得:
2×6m-5×2m=-1,
解得:m=-
.
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