代數的設算法

2008-11-19 1:07 am
X - ( X * 1.85% ) = 1963

我知答案是 X = 2000,但請詳細列出計算從步驟.

THANKS

回答 (2)

2008-11-19 1:19 am
✔ 最佳答案
X - ( X * 1.85% ) = 1963
X - 1963 = 1.85X / 100
100X - 196300 = 1.85X
100X - 1.85X = 196300
98.15X = 196300
X = 20000
參考: 自己計
2008-11-19 1:14 am
X-(1.85%)X=1963

X(1-1.85%)=1963

0.9815X=1963

X=2000
參考: ME (F.4)


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