Question

Solve:$\sqrt{2}x+\sqrt{3}y=0.$
$\sqrt{3}x-\sqrt{8}y=0.$

Answer 1

$\sqrt{2}x+\sqrt{3}y=0$

$\sqrt{3}x-\sqrt{8}y=0$

From above two equations

$\sqrt{3}(\sqrt{2}x+\sqrt{3}y)-\sqrt{2}(\sqrt{3}x-\sqrt{8}y)=0$

$⟹7y=0⟹y=0$

$⟹x=0$