Question

пжпжпжпжпжпжп даю 30 баллов

Answer 1

$\left \{ {{3(y-2x)-(5y+2)=5(1-x)} \atop {7-6(x+y)=2(3-2x)+y}} \right. \\\\\left \{ {{3y-6x-5y-2=5-5x} \atop {7-6x-6y=6-4x+y}} \right.\\\\\left \{ {{-6x+5x+3y-5y=5+2} \atop {-6x+4x-6y-y=6-7}} \right. \\\\\left \{ {{-x-2y=7}|\cdot(-2) \atop {-2x-7y=-1}} \right. \\\\+\left \{ {{2x+4y=-14} \atop {-2x-7y=-1}} \right.\\-------\\-3y=-15\\\\y=5\\\\x=-2y-7=-2\cdot5-7=-10-7=-17\\\\Otvet:\boxed{(-17 \ ; \ 5)}$