Răspuns :
a+b+c=907
a+b=532
b+c=784
532+c=907
c=375
a+784=907
a=123
123+b=532
b=409
123+409+375=907
a+b=532
b+c=784
532+c=907
c=375
a+784=907
a=123
123+b=532
b=409
123+409+375=907
a+b+c=907
a+b=532=>a=532-b
b+c=784=> c=784-b
532-b+b+784-b=907
b+784=375=>b= 409
a=532-409=123
c=784-409=375
a+b=532=>a=532-b
b+c=784=> c=784-b
532-b+b+784-b=907
b+784=375=>b= 409
a=532-409=123
c=784-409=375