Question

решить систему уровнений

Answer 1

$left { {{x-3y=2} atop {xy+y=6}} right. \ \ left { {{x=2+3y} atop {(2+3y)y+y-6=0}} right. \ \ left { {{x=2+3y} atop {3y^{2}+3y-6=0}} right. \ \ left { {{x=2+3y} atop {y^{2}+y-2=0}} right. \ \ y^{2}+y-2=0 \ y_{1}=-2 \ y_{2}=1 \ left { {{x=2+3*(-2)=-4;x=2+3*1=5} atop {y=-2;y=1}} right. \ \ x=-4;y=-2; \ x=5;y=1;$