{2,3x-1,9y=0,8
4,3y/4+(-5x-2/3)=-4,5
{2,3х-1,9у=0,8
4-3у/4+(-5х-2/3)=-4,5
{х=8/23+19/23у
4-3/4у+(-5х-2/3=4,5
4-3у/4+(-5(8/23+19/23у)-2/3)=4,5
у=-802/1347
х=8/23+19/23×(-802/1347)
х=-194/1347
ответ:(194/1347;-802/1347)
