{x-y=2
{3x-y^2=6
{х=2+у
{3х-у²=6
3(2+у)-у²=6
6+3у-у²=6
6+3у-у²-6=0
3у-у²=0
у1=0
у2=3
х1=2+0=2
х2=2+3=5
(х1;у1)=(2;0)
(х2;у2)=(5;3)
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{x-y=2
{3x-y^2=6
{х=2+у
{3х-у²=6
3(2+у)-у²=6
6+3у-у²=6
6+3у-у²-6=0
3у-у²=0
у1=0
у2=3
х1=2+0=2
х2=2+3=5
(х1;у1)=(2;0)
(х2;у2)=(5;3)