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数学
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(1/3x+6)(x+6)=1/2
人气:449 ℃ 时间:2020-05-22 08:37:41
解答
(1/3X+6)÷(X+6)=1/2
1/3X+6=1/2(X+6)
1/3X+6=1/2X+3
-1/6X=-3
X=18
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