[4X+20)/4=-2+(6X-20)/5
人气：283 ℃ 时间：2020-04-05 19:17:53
解答
（4X+20)/4=-2+(6X-20)/5
去分母：5(4x+20)=-40+4(6x-20)
去括号：20x+100=-40+24x-80
合并同类项：4x=220
系数化为1：x=55谢谢啦
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