Question

Решите систему уровнений (А и Б)

Answer 1

$a); ; left { {{3y-x=-4} atop {x-y=6}} right. ; oplus left { {{2y=2} atop {x=y+6}} right. ; left { {{y=1} atop {x=7}} right. ; ; to ; ; (7,1)\\b); ; left { {{x^2+y=14} atop {y-x=8}} right. ; ominus left { {{x^2+x=6} atop {y=x+8}} right. ; left { {{x^2+x-6=0} atop {y=x+8}} right. ; left { {{x_1=-3; ,; x_2=2} atop {y_1=5; ,; y_2=10}} right. ; to ; ; (-3,5); ,; (2,10)$