Răspuns :
270+c = 350
c = 350-270
c = 80
b+c = 160
b+80 = 160
b = 160-80
b = 80
a+b = 270
a+80 = 270
a = 270-80
a = 190
c = 350-270
c = 80
b+c = 160
b+80 = 160
b = 160-80
b = 80
a+b = 270
a+80 = 270
a = 270-80
a = 190
a+b+c=350
a+b=270
b+c=160
a,b.c=?
c=350-270
c=80
a=350-160
a=190
a+c=190+80=270
c=350-270
c=80
a+b=270
b+c=160
a,b.c=?
c=350-270
c=80
a=350-160
a=190
a+c=190+80=270
c=350-270
c=80