(6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)根据数据特点,假设:7/1+8/1+9/1=b,则:上式=(6/1+a)x b-(6/1+b)xa6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)根据数据特点,假设
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![(6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)根据数据特点,假设:7/1+8/1+9/1=b,则:上式=(6/1+a)x b-(6/1+b)xa6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)根据数据特点,假设](/uploads/image/z/12340543-31-3.jpg?t=%EF%BC%886%2F1%2B7%2F1%2B8%2F1%EF%BC%89x%EF%BC%887%2F1%2B8%2F1%2B9%2F1%EF%BC%89-%EF%BC%886%2F1%2B7%2F1%2B8%2F1%2B9%2F1%EF%BC%89x%EF%BC%887%2F1%2B8%2F1%EF%BC%89%E6%A0%B9%E6%8D%AE%E6%95%B0%E6%8D%AE%E7%89%B9%E7%82%B9%2C%E5%81%87%E8%AE%BE%EF%BC%9A7%2F1%2B8%2F1%2B9%2F1%3Db%2C%E5%88%99%EF%BC%9A%E4%B8%8A%E5%BC%8F%3D%EF%BC%886%2F1%2Ba%EF%BC%89x+b-%EF%BC%886%2F1%2Bb%EF%BC%89xa6%2F1%2B7%2F1%2B8%2F1%EF%BC%89x%EF%BC%887%2F1%2B8%2F1%2B9%2F1%EF%BC%89-%EF%BC%886%2F1%2B7%2F1%2B8%2F1%2B9%2F1%EF%BC%89x%EF%BC%887%2F1%2B8%2F1%EF%BC%89%E6%A0%B9%E6%8D%AE%E6%95%B0%E6%8D%AE%E7%89%B9%E7%82%B9%EF%BC%8C%E5%81%87%E8%AE%BE)
(6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)根据数据特点,假设:7/1+8/1+9/1=b,则:上式=(6/1+a)x b-(6/1+b)xa6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)根据数据特点,假设
(6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)
根据数据特点,假设:7/1+8/1+9/1=b,
则:上式=(6/1+a)x b-(6/1+b)xa
6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)
根据数据特点,假设:7/1+8/1+9/1=b,
则:上式=(6/1+a)x b-(6/1+b)x a
=
(6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)根据数据特点,假设:7/1+8/1+9/1=b,则:上式=(6/1+a)x b-(6/1+b)xa6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)根据数据特点,假设
(6/1+7/1+8/1)x(7/1+8/1+9/1)-(6/1+7/1+8/1+9/1)x(7/1+8/1)
根据数据特点,假设:7/1+8/1+9/1=b,7/1+8/1=a
b-a=7/1+8/1+9/1-7/1-8/1=9/1
则:上式=(6/1+a)x b-(6/1+b)x a
=(6/1×b+ab)-(6/1×a+ab)
=6/1×b+ab-6/1×a-ab
=6/1×(b-a)
=6/1×9/1
=54/1
6/1?是六分之一的意思吗 是1/6吧
怎么没问题呢?
拆开后得6/1(b-a)=6/1x9/1=54/1