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从13.5里减去x的6倍,差是15,求x.
人气:100 ℃ 时间:2020-05-11 21:31:51
解答
13.5 - 6x = 15
6x = 13.5 - 15
6x = -1.5
x = -1.5/6
x = -0.25确定?
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