Question

решите систему уравнений у=х у=2-х
10 б

Answer 1

$\left \{ {{y=x} \atop {y=2-x}} \right.\\\\ \left \{ {{y=x} \atop {x=2-x}} \right. \\\\ \left \{ {{y=x} \atop {2x=2}} \right. \\\\ \left \{ {{y=x} \atop {x=1}} \right.\\\\ \left \{ {{y=1} \atop {x=1}} \right.$
Ответ : (1 ; 1)