" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
15×20gr=3zł
18+15=33
9zł+3zł=12zł
y-ilosc 50 groszowek
12zl=1200gr
20x+50y=1200
x+y=33 //-y
x=33-y
20x+50y=1200
x=33-y
20*(33-y) +50y=1200
x=33-y
660-20y+50y=1200
x=33-y
30y=540
x=33-y
y=18
x=33-18
y=18
x=15
y=18