[tex]\displaystyle \left \{ {{\frac{x}{2}+\frac{y}{2}=2 } \atop {\frac{x}{16}+\frac{y}{8}=2 }} \right.\\ \\(x+y)-(x+2y)=4-32\\-y=-28\\y=28\\x+28=4\\x=-24\\(x,y)=(-24,28)[/tex]