Question

Дам 10 баллов

Срочно нужно

Answer 1

$\left \{ {3(y-2x)-(5y+2)=5(1-x)} \atop {7-6(x+y)=2(3-2x)+y}} \right.\\\\\left \{ {{3y-6x-5y-2=5-5x} \atop {7-6x-6y=6-4x+y}} \right.\\\\\left \{ {{-x-2y=7}|*(-2) \atop {-2x-7y=-1}} \right.\\\\+\left \{ {{2x+4y=-14} \atop {-2x-7y=-1}} \right.\\ --------\\-3y=-15\\y=5\\x=-2y-7=-2*5-7=-17\\x=-17\\\\Otvet:\boxed{(-17;5)}$