" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(x+6)/(y-6) = (1/x)/(1/y)
no i mamy układ równań :)
x=6+y
(6+y+6)/(y-6) = y/(6+y)
teraz mnożymy na krzyż:
(12+y)(6+y)=y(y-6)
72+12y+6y+y² = y²-6y
24y=-72
y=3
x=6+3=9