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4/7x-2=0.75x+0.5
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4/7x-2=0.75x+0.5
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答案和解析
4/7x-2=0.75x+0.5…………………………两边同时乘以7
则4x-14=5.25x+3.5
则1.25x=-17.5
则x=-14
则4x-14=5.25x+3.5
则1.25x=-17.5
则x=-14
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