Question

Помогите решить систему уравнений:)
${ left { {{6(y-x)-50=y} atop {y-xy=24}} right.$

Answer 1

$left { {{6(y-x)-50=y} atop {y-xy=24}} right. \ \ left { {{5y-6x=50} atop {y(1-x)=24}} right. \ \ left { {{5y-6x=50} atop {y=frac{24}{1-x}}} right.\ \ left { {{ frac{5*24}{1-x}-6x=50} atop { y=frac{24}{1-x}}} right\ 120-6x(1-x)=50(1-x)\ 120-6x+6x^2=50-50x\ 6x^2+44x+70=0\ D=8^2\ x=-5\ x=-frac{7}{3}\ y=4\ y=frac{24}{1+frac{7}{3}}=7.2$