｛x∧2+xy=3/4
x/y+1=3/2

{х^2+ху=3/4х=(3/2-1)у{(1/2у)^2+1/2у^2=3/4х=1/2у{1/4у^2+1/2у^2=3/4х=1/2у{3/4у^2=3/4х=1/2у{у=1 или у=-1х=1/2 или х=-1/2

Ответ -1/3Или же 0,5