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260Nastya51
@260Nastya51
June 2022
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решите систему уравнений методом подстановки
х-2у=3
х+у=4
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alexey9046
х-2у=3
x=4-y
.
(4-y)-2y=3
-8y+2y^2=3
2y^2+2y-3=0
Через D решишь
2 votes
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260Nastya51
спасибо
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Answers & Comments
x=4-y
.
(4-y)-2y=3
-8y+2y^2=3
2y^2+2y-3=0
Через D решишь