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> 已知xyz≠0,从方程组中求出x:y:z=___;-七年级数学
已知xyz≠0,从方程组中求出x:y:z=___;-七年级数学
题目简介
已知xyz≠0,从方程组中求出x:y:z=___;-七年级数学
题目详情
已知xyz ≠0 ,从方程组
中求出x:y:z=___ ;
题型:填空题
难度:中档
来源:期末题
答案
2:7:5
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若方程组的解满足方程x+y+a=0,
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若二元一次方程3x﹣y=7,2x+3y=1,y=
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已知xyz≠0,从方程组中求出x:y:z=___;-七年级数学
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