Make x be the subject.
y = c+ a-x/x
Maths!!!
2008-10-22 12:46 am
回答 (5)
2008-10-31 1:08 am
你地有無看清楚問題? 根本就是錯問題..
2008-10-22 1:09 am
The question has problem
if
y = c+(a-x)/x
then
y-c=(a-x)/x
x(y-c)=a-x
xy-xc+x=a
x(y-c+1)=a
x=a/(y-c+1)
so the pervious answer is wrong
but if y = a- x/x
then y=a, x can be any number except 0
if
y = c+(a-x)/x
then
y-c=(a-x)/x
x(y-c)=a-x
xy-xc+x=a
x(y-c+1)=a
x=a/(y-c+1)
so the pervious answer is wrong
but if y = a- x/x
then y=a, x can be any number except 0
2008-10-22 12:51 am
y= c + a-x/x
xy = c+a-x
xy - (a-x) = c
x ( y - a )= c
x = c / y-a
xy = c+a-x
xy - (a-x) = c
x ( y - a )= c
x = c / y-a
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