Question

Помагите пожалуйста ​

Answer 1

Объяснение:

Вот ответ.............

Answer 2

$\left \{ {{\frac{x+2y}{2}*10-\frac{x+y}{5}*10}=1*10 \atop {\frac{1-y}{2}*4+\frac{x-2}{4}*4=2*4}} \right.\\\\\left \{ {{5(x+2y)-2(x+y)=10} \atop {2(1-y)+x-2=8}} \right.\\\\\left \{ {{5x+10y-2x-2y=10} \atop {2-2y+x-2=8}} \right.\\\\\left \{ {{3x+8y=10} \atop {x-2y=8}|*4} \right.\\\\+\left \{ {{3x+8y=10} \atop {4x-8y=32}} \right.\\ -------\\7x=42\\x=6\\\\2y=x-8=6-8=-2\\\\y=-1\\\\Otvet:(6;-1)$