Math 問題,急!!(10)

2008-01-03 3:15 am
 1      1       1

---- = ---- + ----
 6      X+1     4 

最好有埋步驟。

回答 (2)

2008-01-03 3:25 am
✔ 最佳答案
1/6 = 1/(X+1)+1/4

1/6-1/4 = 1/(X+1)

2/12-3/12 = 1/(X+1)

-1/12 = 1/(X+1)

-1*(X+1) = 1*12

-X-1 = 12

X = -13
2008-01-03 3:25 am
1/6 = 1/4(x+1)
4(x+1) = 6
4x+4 = 6
4x = 2
x=2/4
x=1/2


收錄日期: 2021-04-14 18:32:11
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