方程式 .............要列式

2008-03-26 9:45 pm
1.25Y-11.4=0.73+8.4 Y=?



please help me!!!!!!!!!!!

回答 (5)

2008-03-26 9:47 pm
✔ 最佳答案
1.25Y-11.4=0.73+8.4
25Y=20.53
Y=20.53/25
Y=2053/2500//
2008-03-29 4:48 am
1.23Y-11.4=0.73+8.4

1.23Y-11.4+11.4=0.73+8.4+11.4

1.23Y=0.73+8.4+11.4

1.23Y=20.53

1.23Y/1.23=20.53/1.23

Y=16.6910569105.....

Y=16.7(取自小數點後一個位)
希望可以幫到你!
參考: 我自己
2008-03-26 10:15 pm
1.25Y-11.4=0.73 8.4
1.25Y=9.13 11.4
20.54 ←
Y= _____ ←(這是份數)
1.25 ←

Y=16.432/16.4(取約至十分位)
參考: 自己
2008-03-26 9:50 pm
    1.25Y-11.4 = 0.73+8.4
1.25Y-11.4+11.4 = 0.73+8.4+11.4
         1.25Y = 20.53
    1.25Y/1.25Y = 20.53/1.25
            Y = 16.424
如果沒計錯就係答案了
我幫你CHECK多次
2008-03-26 9:47 pm
1.25Y - 11.4 = 9.13
1.25Y = 20.53
Y = 16.424


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