送10分題﹕解以下方程

2007-04-09 12:23 am
3.7y-2171=0.9y+4339

回答 (8)

2007-04-09 12:26 am
✔ 最佳答案
3.7y-2171=0.9y+4339
3.7y-0.9y=4339+2171
2.8y=6510
y=2325
2007-04-10 2:53 am
3.7y-2171=0.9y+4339
3.7y=0.9y+4339+2171
3.7y=0.9y+6510
3.7y-0.9y=6510
2.8y=6510
y=6510/2.8
y=2325
2007-04-10 12:56 am
3.7y-2171+2171=0.9y+4339+2171
3.7y=0.9+6510
3.7y-0.9y=6510
2.8y=6510
y=2325
參考: me
2007-04-09 7:47 pm
3.7y-2171=0.9y+4339

3.7y-0.9y-2171=0.9y-0.9y+4339

2.5y-2171+2171=4339+2171

2.5y=6510

2.5y/2.5=6510/2.5

y=2604
參考: me
2007-04-09 3:10 am
37y-21710=9y+43390
      28y=43390+21710
      28y=65100
        y=2325
2007-04-09 12:53 am
y=2325
2007-04-09 12:34 am
3.7y-2171=0.9y+4339
2.8y=6510
y=2325

希望可以幫你啦=v=""!
參考: *V* 自己計
2007-04-09 12:32 am
3.7y=0.9y+4339+2171

3.7y=0.9y+6510

3.7y-0.9y=6510

2.8y=6510

y=6510除以2.8

y=2325


希望幫到你啦
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參考: me


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