a+b +c=163
(a+b)-c=67 results can a +b =67+c , inlocuim in prima ecuatie si avem
67+c+c=163, 2c=163-67, 2c=96, c=96:2, c= 48
a-(b +c)=37, b +c= 37+a), inlocuim in prima ecuatie si avem
a+37+a=163, 2a=163-37, 2a = 126, a= 126:2, a= 63
Il aflam pe b
63+b +48=163, b =163-63-48, b =52
