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Miralinda
@Miralinda
July 2022
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х-2у=8
х2+2у=22
Решить систему уравнений
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Arouzer
Verified answer
Складываем
х2+х=30
х2+х-30=0
х1+х2=-1
х1*х2=-30
х1=-6
х2=5
Подставляем
а) х=-6
-2у=8-5
-2у=3
у=-1,5
б)х=-6
-2у=8+6
-2у=14
у=-7
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Answers & Comments
Verified answer
Складываемх2+х=30
х2+х-30=0
х1+х2=-1
х1*х2=-30
х1=-6
х2=5
Подставляем
а) х=-6
-2у=8-5
-2у=3
у=-1,5
б)х=-6
-2у=8+6
-2у=14
у=-7