z równości ,gdzie i , wyznacz zmienne a)c b)x c)a
HEj.
:)
a-x 1
------ = ----------
b c
c=b/(a-b)
------------------
(a-x)·c=b
ac-xc=b
-xc=b-ac /:(-c)
x=(ac-b) /c
___________________
(a-x)c=b /:(a-x)
c=b/(a-x)
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HEj.
:)
a-x 1
------ = ----------
b c
c=b/(a-b)
------------------
(a-x)·c=b
ac-xc=b
-xc=b-ac /:(-c)
x=(ac-b) /c
___________________
(a-x)c=b /:(a-x)
c=b/(a-x)