" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
y-ilość krówek
1/2x+1/3y=18
1/2x=2/3y
3x+2y=108
3x=4y
4y+2y=108
3x=4y
6y=108
3x=4y
y=18
x=24
zostało 12 irysów i 16 krówek