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(0.1x-0.2)÷0.02-(x-1)÷0.5=3求解.解方程.
人气:384 ℃ 时间:2019-12-06 19:32:45
解答
(0.1x-0.2)÷0.02-(x-1)÷0.5=3
5x-10-2(x-1)=3
5x-10-2x+2=3
3x=11
x=11/3
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