Задача №20067

Решите систему уравнений: $\{\begin{array}{l}(x+1)(y+2)=0,\\ \frac{x-4}{x+y+6}=-2.\end{array}$$\{\begin{array}{l}(x+1)(y+2)=0,\\ \frac{x-4}{x+y+6}=-2.\end{array}$$$\{\begin{array}{l}(x+1)(y+2)=0,\\ \frac{x-4}{x+y+6}=-2.\end{array}$$