a;b;c= numerele căutate
a+b+c=125
a:c= 14 rest 3=>a=14c+3
b:c=9 rest 2=>b=9c+2
14c+3+9c+2+c=125
24c+5=125
24c=125-5
24c=120
c=120/24
c=5
a=14•5+3
a=70+3=73
b=9•5+2=45+2=47
22)x=84+y
x+y :x-y=4 rest 16
84+y+y:84+y-y=4 rest 16
84+2y:84=4 rest 16
84+2y=4•84+16=352
2y=352-84=268
y=268/2
y=134
x=84+134=218