X - X 乘16%=1512 求列式

2007-05-16 7:21 am

X - X 乘16%=1512 求列式

回答 (6)

2007-05-16 7:25 am

✔ 最佳答案

X - X 乘16%=1512
=> X - 0.16X = 1512
=> 0.84X = 1512
=> X = 1512/0.84
=> X = 1800

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2007-05-17 8:52 am

X - X (16%) =1512
X - (16/100)X =1512
(1-0.16)X =1512
X =1512/0.84
X =1800

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2007-05-16 7:28 am

Ｘ　－　Ｘ．１６％　＝　１５１２
１００％Ｘ　－　１６％Ｘ　＝　１５１２　＜－可省去
８４％Ｘ　＝　１５１２
Ｘ　＝　１５１２／８４％
Ｘ　＝　１８００

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2007-05-16 7:27 am

x-x*16%=1512

x(1-16%)=1512

x=1512/84%

x=1800

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2007-05-16 7:26 am

x-x*16%=1512
x(1-16%)=1512
x(84%)=1512
x=1512/84%
x=1800

參考: myself

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2007-05-16 7:26 am

X-X(16%)=1512
X[1-1(0.16)]=1512
X(0.84)=1512
X=1512/0.84
X=1800

參考: 自己計..

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