1)-2(y-7) =7y-4
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2)4(y+3) = -8(y-6)
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3)-5(y-2)-9 = 3(y-13)
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4) 9分之12-14z =15+3z
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5)6分之-(7z+4) = 3分之26
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6)11分之14-9z = 7分之z+8
收錄日期: 2021-05-03 17:30:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081009000051KK01039