" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x-3cm-krószy bok
2x+2(x-3cm)=42cm
2x+2x-6cm=42cm
4x=42cm+6cm
4x=48cm/:4
x=12cm
x-3cm=12cm-3cm=9cm
boki prostokąta mają długości 12cm i 9cm