help me!!!點計???

[匿名]

2011-11-07 4:58 am

點計???
2[3(c+1)-5]=1

回答 (2)

fighting gravity

2011-11-07 5:29 am

✔ 最佳答案

2[3(c+1)-5]=1
3c+3-5=1/2
3c-2=1/2
3c=1/2+2
c=(5/2)/3
c=5/6

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siu kei

2011-11-11 5:28 am

整數比分數好計

2[3(c+1)-5]=1
2(3c+3-5)=1
2(3c-2)=1
6c-4=1
6c=5
c=5/6

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