发布网友 发布时间:2024-10-24 02:43
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热心网友 时间:2024-11-29 01:24
解:2.8 减 4/5 X =0.62.8 - 4/5 X = 0.64/5 X = 2.8 - 0.6 =2.2X = 2.2 × 5/4 =11/4
2.8-0.8*x=0.6,求得x=2.75