Question

rezolvatii sistemul de ecuatii:
2[x]+[y]=3
x^2+y^2=12.5​

Answer 1

$\left \{ {{2x=3-y} \atop {2x+2y=12,5}} \right.$

$\left \{ {{2x=3-y} \atop {3-y+2y=12,5}} \right.$

$\left \{ {{2x=3-y} \atop {y=9,5}} \right.$

$\left \{ {{x=-3,25} \atop {y=9,5}} \right.$