1500x+2443y=10323,843
2800x+1300y=11769,3
x=(10323,843-2443y)/1500
2800 ×(10323,843-2443y)/1500+1300y=11769,3
28 ×(10323,843-2443y)/15+1300y=11769,3
289067,604-68404y+19500y=176539,5
48904y=112528,104
y=2,301 lei/dolar
x=(10323,843-2443×2,301)/1500=3,135 lei/euro