cartofi +castraveti =24 kg => castraveti=24 kg -cartofi
gogosari+castraveti=18 kg =>gogosari =18kg- castraveti=>gogosari=18kg-24kg +-cartofi
cartofi+castraveti+gogosar= 32kg
inlocuim
cartofi+24kg-cartofi+18kg-24kg +-cartofi=32 kg
cartofi=32kg -18kg
cartofi=14kg
castraveti=24kg-14 kg=10 kg
gogosari=18kg-10kg= 8 kg