a+b+c+d+e=22.542kg
a+b=d+e+59kg
a+e=9.402kg
b=4.144kg
c=b+439kg => c=4.144+439 => c=4.583kg
a+d+e+4144+4583=22542 => a+d+e=13.815kg
Stim ca a+e=9.402 => d=13.815-9.402 => d=4.413kg
Inlocuim cunoscutele in ecuatia a 2-a =>
a+4.144=4.413+e+59 => a=e+59+269 => a=e+328kg
a+e=9.402kg => e+e+328=9.402 => 2*e=9.074kg => e=4.537kg
=> a=9.402-4.537 => a=4.865kg
REZULTATE:
A=4.865kg;
B=4.144kg;
C=4.583kg;
D=4.413kg;
E=4.537kg.
Sper ca ti-am fost de mare ajutor :)