數學一題..........

🎓 學業台教學

2008-01-02 12:39 am

1.4(y+1)-3(2y-4)=3(y-3)

回答 (3)

2008-01-02 12:52 am

✔ 最佳答案

4(y+1)-3(2y-4)=3(y-3)
4y+4-6y+12=3y-9
4y-6y+3y=-9-4-12
-5y=-25
-5y/5=-25/5
-y=-5
-y(-y)=-5(-5)
y=25

參考: me

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2008-01-02 2:40 am

4y+4-6y+12=3y-9
-2y+16=3y-9
25=5y
y=5

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2008-01-02 12:49 am

4(y+1)-3(2y-4)=3(y-3)
4y+4-6y+12=3y-9
-5y=-25
y=5

參考: 自己

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收錄日期: 2021-04-21 13:15:37
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https://hk.answers.yahoo.com/question/index?qid=20080101000051KK02449

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