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数学
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方程2（3x-4）+7（4-x）=4x的解为______．
人气：178 ℃ 时间：2019-10-04 12:37:39
解答
方程去括号得：6x-8+28-7x=4x，
移项合并得：5x=20，
解得：x=4．
故答案为：x=4
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