" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x=2kg+1/2x
x-1,2x=2kg
1/2x=2kg/:1/2
x=2/1 kg * 2/1
x=4/1 kg
x=4kg
odp.cegła waży 4kg. :)