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anyutar2009
@anyutar2009
July 2023
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Дам 50 балов!!!!
Розвʼяжіть систему способом додавання
-5х+3у=27,
5х+2у=-7;
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1Manka1
{-5х+3у=27
{5х+2у=-7
5у=20
у=20/5
у=4
-5х+3*4=27
-5х+12=27
-5х=27-12
-5х=15
х=15/(-5)
х=-3
Відповідь: (х;у)=(-3;4)
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Answers & Comments
{5х+2у=-7
5у=20
у=20/5
у=4
-5х+3*4=27
-5х+12=27
-5х=27-12
-5х=15
х=15/(-5)
х=-3
Відповідь: (х;у)=(-3;4)