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Автор - daryachehova

Решите систему уравнений!
3х+4у=0
2х-5у=46

Ответ

Автор - milkal00
{3x+4y=0⇒ {y=3/4x⇒ {y=-3/4x⇒         {y=-3/4x ⇒   {y=-3/4⇒  {y=-3/4*8⇒ {y=-6
{2x−5y=46  {2x-5y=46   {2x-5(-3/4x)=46  {23/4x-46=0  {x=8
{x=8
{y=-6

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