Question

Метод підстановки
{2х-у=3
{3х-2у=-8
​

Answer 1

$\displaystyle\bf\\\left \{ {{2x-y=3} \atop {3x-2y=-8}} \right. \\\\\\\left \{ {{y=2x-3} \atop {3x-2\cdot(2x-3)=-8}} \right. \\\\\\\left \{ {{y=2x-3} \atop {3x-4x+6=-8}} \right. \\\\\\\left \{ {{y=2x-3} \atop {-x=-8-6}} \right.\\\\\\\left \{ {{y=2x-3} \atop {-x=-14}} \right. \\\\\\\left \{ {{y=2\cdot 14-3} \atop {x=14}} \right. \\\\\\\left \{ {{y=25} \atop {x=14}} \right. \\\\\\Otvet \ : \ (14 \ ; \ 25)$