Răspuns :
a+b+c=1006
a=3b
c=b+12
3b+b+b+12=1006
5b=1006-12
5b=994=>b=198.8
a=3b=>a=198.8x3=596.4
c=198.8+12=210.8
a=3b
c=b+12
3b+b+b+12=1006
5b=1006-12
5b=994=>b=198.8
a=3b=>a=198.8x3=596.4
c=198.8+12=210.8
a+b+c=1006
b=3a
c=b+12 deci c=3a+12
a+3a+3a+12=1006
7a+12=1006
7a=994
a=142
deci b=3*142 si b=426
c=426+12 si c=438
b=3a
c=b+12 deci c=3a+12
a+3a+3a+12=1006
7a+12=1006
7a=994
a=142
deci b=3*142 si b=426
c=426+12 si c=438