dany-jest-uklad-rownan-begincases-x-3y50-2xy30-endcasesrozwiazaniem-tego-ukladu

$x=1$x=1 i $y=2$y=2

$x=0$x=0 i $y=-3$y=-3

$x=-2$x=-2 i $y=1$y=1

$x=-1$x=-1 i $y=-1$y=-1