a+b+c=125
a+x=46
a=46-x
b+x=61
b=61-x
c+x=66
c=66-x
46-x+61-x+66-x=125
173-3x=125
3x=173-125
3x=48
x=48:3
x=16
a=46-16=30
b=61-16=45
c=66-16=50
[tex]a + b + c = 125\\\\a + x=46\\\\\boxed{a = 46 - x}\\\\b + x = 61\\\\\boxed{b = 61 - x}\\\\c + x = 66\\\\\boxed{c = 66 - x}\\\\\:\: inlocuim \:in \:suma\: si\: vom\: avea\\\\46 - x + 61 - x + 66 - x = 125\\\\173 - 3x = 125\\\\3x = 173 - 125\\\\3x =48\\\\x = 48 : 3\\\\\boxed{x = 16}\\\\a = 46 - 16\\\\ \boxed{a = 30}\\\\b = 61 - 16\\\\\boxed{b = 45}\\\\c = 66 - 16\\\\\boxed{c = 50}[/tex]
