" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
0.5x+5,4-0.2x=8,7
0.3x=33
x=11
zatem 20 groszówek jest 27-x=16
x=11
11 po 50gr i 16 po 20gr