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5x-(5除以2.5)=3.8怎么解
人气:379 ℃ 时间:2020-03-24 01:23:58
解答
5x - (5÷2.5) = 3.8
5x - 2 = 3.8
5x = 3.8 + 2
5x = 5.8
x = 5.8÷5
x = 1.16
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