Odpowiedź:
[tex]\left \{ {{\frac{x+4}{3} +2y=4} /*3\atop {\frac{x}{4} -\frac{y+4}{2} =0}/*4} \right. \\ \left \{ {{x+4+6y=12} \atop {x-2(y+4)=0}} \right. \\ \left \{ {{x=12-4-6y} \atop {x-2y-8=0}} \right. \\ \left \{ {{x=8-6y} \atop {8-6y-2y-8=0}} \right. \\ \left \{ {{x=8-6y} \atop {-8y=0}} \right. \\ \left \{ {{x=8-6y} \atop {y=0}} \right. \\ \left \{ {{x=8-6*0} \atop {y=0}} \right. \\ \left \{ {{x=8} \atop {y=0}} \right.[/tex]
