#1438 решите систему управления способом постановки ( 1 ) СРОЧНО НУЖНО!!!!. Created by tvoyaodnnyana. matematika-ru

#1438 решите систему управления способом постановки ( 1 ) СРОЧНО НУЖНО!!!!...

tvoyaodnnyana @tvoyaodnnyana

July 2022 1 7 Report

#1438 решите систему управления способом постановки ( 1 )

СРОЧНО НУЖНО!!!!

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NNNLLL54

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$\left\{\begin{array}{l}\dfrac{x}{2}-\dfrac{y}{3}-1=0\, |\cdot 6\\\dfrac{x}{5}-\dfrac{y}{4}+1=0\, |\cdot 20\end{array}\right\ \ \left\{\begin{array}{l}3x-2y=6\\4x-5y=-20\end{array}\right\ \ \left\{\begin{array}{l}y=\dfrac{3x-6}{2}\\\, 4x-\dfrac{5\cdot (3x-6)}{2}=-20\end{array}\right$

$\left\{\begin{array}{l}y=\dfrac{3x-6}{2}\\4x-7,5x+15=-20\end{array}\right\ \ \left\{\begin{array}{l}y=\dfrac{3x-6}{2}\\-3,5x=-35\end{array}\right\ \ \left\{\begin{array}{l}y=12\\x=10\end{array}\right\\\\\\Otvet:\ \ (\, 10\, ;\, 12\, )\ .$

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