Posted by GGIFT on Wednesday, March 10, 2010 at 1:01pm.
to solve the following:
4s over 7s = 3 over s7...
LCD is s7
then
(s7)(4s over 7s) = (s7) (3 over s7)?
am I on the right track???

ALGEBRA  Reiny, Wednesday, March 10, 2010 at 1:19pm
4s over 7s = 3 over s7
(4s)/(7s) = 3/(s7)
notice one denominator is the negative of the other, so
(s4)/(s7) = 3/(s7)
then
s  4 = 3
s = 7
BUT;, s = 7 makes our denominators zero and our fractions would be undefined, so ...
no solution. 
ALGEBRA  GGIFT, Wednesday, March 10, 2010 at 6:00pm
i forgot about the zero thing. thank you