题目内容
(本题满分6分)解方程:
解:方程两边同乘以-2,得1-+2(-2)=1,································· 2分
即1-+2-4=1,···················································································· 4分
解得=4.···························································································· 5分
经检验,=4是原方程的根.···································································· 6分
即1-+2-4=1,···················································································· 4分
解得=4.···························································································· 5分
经检验,=4是原方程的根.···································································· 6分
略
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