у=3х - 8
х=-у
у=3*(-у)-8
у+3у=-8
4у=-8
у=-2
х=2
(2;-2)
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Verified answer
у=3х - 8
х=-у
у=3*(-у)-8
у+3у=-8
4у=-8
у=-2
х=2
(2;-2)