兩邊同時乘以100,得:
65(X-1)=37(X+1)+10
65X-65=37X+37+10
65X-37X=37+10+65
28X=112
得:X=4
65/100 ( x-1)=37/100(x +1)+0.
65/100 ( x-1)=37/100(x +1)+0.
分數(shù)不好輸,上面的式子希望大家能看懂!(65/100是百分之六十五,37/100是百分之三十七).
分數(shù)不好輸,上面的式子希望大家能看懂!(65/100是百分之六十五,37/100是百分之三十七).
數(shù)學人氣:144 ℃時間:2020-05-26 15:01:25
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