Răspunsuri

2014-05-02T20:40:46+03:00
A+b=148
a+c=120 
b+c=132

2a+2b+2c=148+120+132
2(a+b+c)=400
a+b+c=200

a+b=148 
c=200-148
c=52

a+c=120
a+52=120
a=120-52
a=68

a+b=148
68+b=148
b=148-68
b=80