Răspunsuri

  • Utilizator Brainly
2014-09-12T16:54:54+03:00
A+M=84
A=M+12
M+12+M=84
2M+12=84
2M=72
M=36

A=36+12⇒A=48
2014-09-12T16:59:30+03:00
A + M = 84 
A - 12 = (M = A)
A  ____/ + 12 + 12
M  ____/
84 - 12 - 12 = 60
60 : 2 = 30 timbre are Marian
30 + 12 + 12 = 54 timble are Anca 
Verificare: daca Anca ii da lui Marian 12 timbre vor avea un nr. egal. => 54 - 12 = 42 timbte Anca si 30 + 12 = 42 timbre Maria