Răspunsuri

2014-04-19T18:41:35+03:00
A+b+c=607
a+x=435   a=435-x
b+x=147    b=147-x
c+x=55       c=55-x
435-x+147-x+55-x=607
637-3x=607
-3x=607-637
-3x=-30
3x=30
x=10
1 5 1