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y-x=14
x=-(-y+14)
x=y-14
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(y-14)^2-3y^2=52
y^2-28y+196-3y^2-52=0
-2y^2-28y+196-52=0
-2y^2-28y+144=0
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D=(-28)^2-4*(-2)*144=784+1152=1936
y1=(44-(-28))/(2*(-2))=-18
y2=(-44-(-28))/(2*(-2))=4
y-x=14
(-18)-x=14
x1=-32
4-x=14
x2=-10
Ответ: x1=-32; x2=-10; y1=-18; y2=4.