Răspuns :
Notam numarul necunoscut cu:"y"
(y-2134)+3202=4322
(y-2134)=1120
y=3254
(y-2134)+3202=4322
(y-2134)=1120
y=3254
x-2134=y
y+3202=4322=>Y=4322-3202=1120
x-2134=1120=>x=1120+2134=3254
y+3202=4322=>Y=4322-3202=1120
x-2134=1120=>x=1120+2134=3254