Question

решите систему уравнений {y^2-xy=33, x-y=11. срочноо!​

Answer 1

$\left \{ {{y^2-xy=33, } \atop {{ x-y=11}} \right.$

$\left \{ {{-y(x-y)=33, } \atop {{ x-y=11}} \right.$

$\left \{ {{x-y=11, } \atop {{ -y*11=33}} \right.$

$\left \{ {{x-y=11, } \atop {{ -y=3}} \right.$

$\left \{ {{x=11+y, } \atop {{ y=-3}} \right.$

$\left \{ {{y=-3, } \atop {{ x=11-3}} \right.$

$\left \{ {{y=-3, } \atop {{ x=8}} \right.$

Ответ: $(8;-3)$