Question

решите систему уравнения
3х-у=0
5х-у=0

Answer 1

$left { {{3x-y=0} atop {5x-y=0}} right. left { {{y=3x} atop {5x-y=0}} right.\ \5x-3x=0 \2x=0 \x=0 \y=3*0 \y=0 \(x,y)=(0,0)$
 Проверка:
$left { {{3*0-0=0} atop {5*0-0=0}} right.\\ left { {{0=0} atop {0=0}} right.$