Question

пОМОГИТЕ ПОЖАЛУЙСТА 1 ЗАДАНИЦЕ

Answer 1

$left { {{x+xy-3y=-3} atop {2x-xy+y=2}} right. \\ left { {{x+xy-3y+2x-xy+y=-3+2} atop {x+xy-3y=-3}} right. \\ left { {{3x-2y=-1} atop {3x+3x*y-9y=-9}} right. \\ left { {{3x=2y-1} atop {2y-1+(2y-1)*y-9y=-9}} right. \\ left { {{3x=2y-1} atop {2y-1+2y^2-y-9y=-9}} right. \\ left { {{3x=2y-1} atop {2y^2-8y+8=0}} right. \\ left { {{3x=2y-1} atop {y^2-4y+4=0}} right. \\ left { {{x=frac{2y-1}{3}} atop {(y-2)^2=0}} right.$

$left { {{x=frac{2y-1}{3}} atop {y-2=0}} right. \\ left { {{x=frac{2*2-1}{3}} atop {y=2}} right. \\ left { {{x=1}} atop {y=2}} right.$

Ответ: $(1; 2)$