Answer :
[tex]\left \{ {{-2x-4y=-26} \atop {-3x-3y=-12}} \right. \\\left \{ {{-6x-24y=-78} \atop {6x+6y=24}} \right.\\-18y=-54\\y=3\\-2x-4*3=-26\\-2x=-14\\x=7\\\\Answer: (7;3)[/tex]
P.S. Hello from Russia
[tex]\left \{ {{-2x-4y=-26} \atop {-3x-3y=-12}} \right. \\\left \{ {{-6x-24y=-78} \atop {6x+6y=24}} \right.\\-18y=-54\\y=3\\-2x-4*3=-26\\-2x=-14\\x=7\\\\Answer: (7;3)[/tex]
P.S. Hello from Russia