Question

СССРРОООЧНООО!!!!!!!

Answer 1

$+\left \{ {{2x+y=1} \atop {6x-y=6}} \right.$
_____________
8x = 7
$x= \frac{7}{8}=0,875 \\\\2* \frac{7}{8} +y=1\\\\y=1- \frac{7}{4} =1-1,75=-0,75$

Ответ: $( 0,875;-0,75)$