Verified answer

[tex]\displaystyle\bf\\\left \{ {{5x-2y=11} \atop {4x-y=4} \ |\cdot(-2)} \right. \\\\\\+\left \{ {{5x-2y=11} \atop {-8x+2y=-8}} \right. \\----------\\-3x=3\\\\x=-1\\\\y=4x-4=4\cdot (-1)-4=-4-4=-8\\\\Otvet: \ (-1 \ ; \ -8)[/tex]