呢條問題真傷腦筋！

2007-08-23 10:28 pm

4/5x-8=1/2
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回答 (4)

2007-08-23 10:33 pm

✔ 最佳答案

4/5x-8=1/2
4/5x=1/2+8
x=(17/2)(4/5)
x=34/5

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2007-08-23 11:04 pm

4/5x-8=1/2

4/5x=1/2+8

x=(17/2)

(4/5)x=34/5

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2007-08-23 10:41 pm

4/5x-8=1/2
4/5X = 1/2+8
4/5X = 17/2
2(4) = 17(5X) 交叉相成
8 = 85X
X = 8/85

參考: ME

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2007-08-23 10:37 pm

4/5 x-8 =1/2

2 * (4/5x) - 2*(8) = 1
8/5x -16=1
8/5x= 1+16
8/5x=17
x=(17 *5)/8

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