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vischenka1
@vischenka1
July 2022
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решите систему уравнений 2(х+у)=5+х и 3(х+у)+4(5+у)=-(х+у+1)
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Proffi456
1 ответ
2(x+y)=5+x
2x+2y=5+x
2x+2y-x=5
x+2y=5
2xy=5
xy=5/2
xy=2.5
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Thanks 3
Proffi456
а второе мне лень писать
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Answers & Comments
2(x+y)=5+x
2x+2y=5+x
2x+2y-x=5
x+2y=5
2xy=5
xy=5/2
xy=2.5