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2007-10-07 1:15 am
5(x+1)
---------- -2 = 3
6

點計呀??
唔該..

回答 (5)

2007-10-07 1:17 am
✔ 最佳答案
5(x+1)/6-2=3
5(x+1)/6=5
5x+5=30
5x=25
x=5

2007-10-06 17:21:50 補充:
樓下果位julie61339984 唔該唔好copy我d steps淨係加左 hope i can help you 就當係自己做 -.-好激氣!
2007-10-07 1:42 am
5(x+1)
---------- -2 = 3
6

5(x+1)
---------- -2+2 = 3+2
6

5(x+1)
---------- = 5
6

5(x+1)
----------(6) = 5(6)
6

5(x+1)=30

5(x+1)÷5=30÷5

x+1=6

x+1-1=6-1

x=5
參考: myself
2007-10-07 1:23 am
5(x+1)
---------- -2 = 3
6

5(x+1)-2=6x3
5x+5-2=18
5x+3=18
5x=15
x=3
2007-10-07 1:20 am
5x+ 5
---------- -2+2 = 3+2
6
5x+ 5
---------- *6 =5*6
6

5x+ 5 =30
5x+ 5-5 =30-5
5x =25
參考: me
2007-10-07 1:19 am
5(x+1)/6-2=3

5(x+1)/6=5

5x+5=30

5x=25

x=5

hope me can help you!!!

that's can he;p you
參考: me


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