解方程 1 1/2x+2/3=5/6 2 5/9x - 1/6x=14
人气：489 ℃ 时间：2020-01-28 09:51:11
解答
1/2x+2/3=5/6
两边乘于6 3X+4=5
3X=5-4
3X=1
X=1/3
5/9x - 1/6x=14
两边乘于18 10X-3X=14
7X=14
X=14/7
X=2
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