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数学
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5分之2乘2分之1减10分之1x等于6分之1 3分之2x加2分之1x等于42 3.6乘0.5等于0.75x等于0.8
人气:244 ℃ 时间:2019-09-20 05:37:25
解答
2/5×1/2-x/10=1/6
(1-x)/10=1/6
1-x=10/6
x=1-5/3=-2/3
7x/6=42
x=42*6/7=36
3.6×0.5=0.75x×0.8
1.8=0.6x
x=3
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