4[m-3(2m-4)]+3(m-2)=9m+2(m+3)+8
有冇人計到m係咩呀?比埋步驟我啦..
我計極都計唔到(泣)
一題數學題
2006-11-07 8:07 am
回答 (6)
2006-11-07 8:12 am
✔ 最佳答案
4[m-3(2m-4)]+3(m-2)=9m+2(m+3)+84[m-6m+12]+3m-6=9m+2m+6+8
4m-24m+48+3m-6=11m+14
-17m+42=11m+14
42-14=11m+17m
28m=28
m=1
2006-11-07 8:06 pm
4[m - 6m +12] + 3m - 6 = 9m + 2m + 6 + 8
4m - 24m + 48 + 3m -6 = 11m + 14
28m = 28
m = 1
4m - 24m + 48 + 3m -6 = 11m + 14
28m = 28
m = 1
2006-11-07 7:58 pm
4[m-3(2m-4)]+3(m-2) = 9m+2(m+3)+8
4(m-6m+12)+3m-6 = 9m+2m+6+8
4(12-5m)+3m-6 = 11m+14
48-20m+3m-6 = 11m+14
42-17m = 11m+14
28 = 28m
1 = m
m = 1
4(m-6m+12)+3m-6 = 9m+2m+6+8
4(12-5m)+3m-6 = 11m+14
48-20m+3m-6 = 11m+14
42-17m = 11m+14
28 = 28m
1 = m
m = 1
2006-11-07 12:43 pm
4[m-3(2m-4)]+3(m-2)=9m+2(m+3)+8
4[m-6m+12]+3m-6=9m+2m+6+8
4m-24m+48+3m-6=9m+2m+6+8
-17m+42=11m+14
42=28m+14
28=28m
m=1
4[m-6m+12]+3m-6=9m+2m+6+8
4m-24m+48+3m-6=9m+2m+6+8
-17m+42=11m+14
42=28m+14
28=28m
m=1
參考: My brain
2006-11-07 8:17 am
4[m-3(2m-4)]+3(m-2) = 9m+2(m+3)+8
4m-24m+ 48 + 3m -6 = 9m + 2m + 6 + 8
-17m + 42 = 11m + 14
-28m = -28
m = 1
Finally, m = 1
4m-24m+ 48 + 3m -6 = 9m + 2m + 6 + 8
-17m + 42 = 11m + 14
-28m = -28
m = 1
Finally, m = 1
參考: my exp
2006-11-07 8:13 am
4[m-3(2m-4)]+3(m-2)=9m+2(m+3)+8
4[m-6m+12]+3m-6=9m+2m+6+8
4m+24m+48+3m-6=9m+2m+6+8
31m+42=11m+14
31m-11m=14-42
20m=-28
m=-28/20
m=-1.4
2006-11-07 00:34:17 補充：
SORRY ........... 計錯數4[m-3(2m-4)]+3(m-2)=9m+2(m+3)+84[m-6m+12]+3m-6=9m+2m+6+84m-24m+48+3m-6=9m+2m+14-17m+42=11m+1442-14=11m+17m28=28mm=1唔好意思!!
4[m-6m+12]+3m-6=9m+2m+6+8
4m+24m+48+3m-6=9m+2m+6+8
31m+42=11m+14
31m-11m=14-42
20m=-28
m=-28/20
m=-1.4
2006-11-07 00:34:17 補充：
SORRY ........... 計錯數4[m-3(2m-4)]+3(m-2)=9m+2(m+3)+84[m-6m+12]+3m-6=9m+2m+6+84m-24m+48+3m-6=9m+2m+14-17m+42=11m+1442-14=11m+17m28=28mm=1唔好意思!!
收錄日期: 2021-04-12 19:09:01
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061107000051KK00034