[tex]\displaystyle\bf\\\left \{ {6x-2y=5x+3} \atop {x-4y=1}} \right. \\\\\\\left \{ {{6x-5x-2y=3} \atop {x-4y=1}} \right. \\\\\\-\left \{ {{x-2y=3} \atop {x-4y=1}} \right. \\--------\\x-2y-x+4y=3-1\\\\2y=2\\\\y=1\\\\x=1+4y=1+4\cdot 1=1+4=5\\\\\\Otvet \ : \ (5 \ ; \ 1)[/tex]