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1/6x +1/12x+ 1/7x =x
如题,
快点回答回答,救急.3Q
人气:303 ℃ 时间:2020-05-14 17:48:05
解答
1/6x +1/12x + 1/7x = x
1/6x +1/12x + 1/7x - x = 0
(1/6 + 1/12 + 1/7 - 1)x = 0
-17x/28 = 0
x = 0
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