Răspuns :
1. Cati pomi a plantat al treilea copil ?
82-54=28
2. Cati pomi a plantat primul copil ?
82-51=31
3. Cati pomi a plantat al doilea copil ?
54-31=23
R: 28; 31; 23.
82-54=28
2. Cati pomi a plantat primul copil ?
82-51=31
3. Cati pomi a plantat al doilea copil ?
54-31=23
R: 28; 31; 23.
a+b+c=82
a+b =54
b+c=51
c=82-54
c=28
a=82-51
a=31
b=82-(28+31)
b=82-59
b=23
V:28+31+23=59+23
=82
a+b =54
b+c=51
c=82-54
c=28
a=82-51
a=31
b=82-(28+31)
b=82-59
b=23
V:28+31+23=59+23
=82