求(3000-X)/(X-1000),求X值及计算方法步骤.不好意思,补上(3000-X)/(X-1000)=(100-20)/(20-10)
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求(3000-X)/(X-1000),求X值及计算方法步骤.不好意思,补上(3000-X)/(X-1000)=(100-20)/(20-10)
求(3000-X)/(X-1000),求X值及计算方法步骤.
不好意思,补上(3000-X)/(X-1000)=(100-20)/(20-10)
求(3000-X)/(X-1000),求X值及计算方法步骤.不好意思,补上(3000-X)/(X-1000)=(100-20)/(20-10)
只有未知数,方程右边的呢
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