LEA82
LEA82
19-08-2014
Mathematics
contestada
if (x-1)/(x)=20 then x=
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Аноним
Аноним
19-08-2014
[tex]D:x\neq0\\\\\frac{x-1}{x}=20\ \ \ \ |cross\ multiply\\\\20x=x-1\ \ \ \ |subtract\ x\ from\ both\ sides\\\\19x=-1\ \ \ \ \ \ |divide\ both\ sides\ by\ 19\\\\\boxed{x=-\frac{1}{19}}[/tex]
Answer Link
Аноним
Аноним
19-08-2014
(x-1)/(x)=20
20x=x-1
20x-x=-1
19x=-1
x=-(1/19)
Answer Link
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