Уравнение помогите решить, пож

$\left \{ {{5x-4y=12} \atop {x-5y=-6}} \right. \left \{ {{5(-6+5y)-4y=12} \atop {x=-6+5y}} \right. \left \{ {{-30+25y-4y=12} \atop {x=-6+5y}} \right.$ $\left \{ {{21y=12+30} \atop {x=-6+5y}} \right.$ $\left \{ {{21y=42} \atop {x=-6+5y}} \right.$ $\left \{ {{y=2} \atop {x=-6+5*2}} \right.$ $\left \{ {{y=2} \atop {x=4}} \right.$
Ответ:4;2,