Question

Решите способом подстановки:$\left \{ {{9x-3y+6=0} \atop {4x-y+2=0}} \right.$

Answer 1

$\left \{ {{y=4x+2} \atop {9x-3(4x+2)+6=0}} \right.$
$\left \{ {{y=4x+2} \atop {9x-12x=0}} \right.$
$\left \{ {{y=4x+2} \atop {-3x=0}} \right.$
$\left \{ {{x=0} \atop {y=2}} \right.$