Question

Решите систему уравнений 

{2x-y+6=0
{x+4y-10=0

Answer 1

$left { {{2x-y+6=0} atop {x+4y-10=0}} right. left { {{8x-4y+24=0} atop {x+4y-10=0}} right.$
$9x=14$
$x=- frac{14}{9}$
$left { {{x=- frac{14}{9} } atop {- frac{14}{9}+4y-10=0 }} right.$
$- frac{104}{9}+4y=0$
$left { {{x=- frac{14}{9} } atop {y=- frac{26}{9} }} right.$