解方程：。-九年级数学

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• 用换元法解分式方程，若设2x2-x=y，则原方程可化为关于y的整式方程是（）。-九年级数学
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• 解下列方程：（1）；（2）。-八年级数学
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• 解答下列各题：（1）计算：；（2）解不等式组并写出该不等式组的整数解；（3）解方程：。-九年级数学
• 解方程：-八年级数学
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• 解分式方程：（1）；（2）。-八年级数学
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• 解分式方程：。-九年级数学
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• 方程的解是[]A.-1B.2C.1D.0-九年级数学
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• 分式方程的解为（）。-九年级数学
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