розв'яжіть дану систему способом додавання пжжжжСрлчно. Created by p5134202. algebra-ru

Объяснение:Cуммируем эти уравнения:Ответ: (5;7).

розв'яжіть дану систему способом додавання пжжжжСрлчно...

p5134202 @p5134202

August 2021 1 32 Report

розв'яжіть дану систему способом додавання пжжжж
Срлчно

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sangers1959

Verified answer

Объяснение:

$\left \{ {{\frac{2x-6}{4} -\frac{5-3y}{8}=3\ |*8 } \atop {5x-3y=4}} \right. \ \ \ \ \left \{ {{4x-12-5+3y=24} \atop {5x-3y=4}} \right. \ \ \ \ \left \{ {{4x+3y-17=24} \atop {5x-3y=4}} \right. \ \ \ \ \left \{ {{4x+3y=41} \atop {5x-3y=4}} \right..$

Cуммируем эти уравнения:

$9x=45\ |:9\\x=5.\\5*5-3y=4\\25-3y=4\\3y=21\ |:3\\y=7.$

Ответ: (5;7).

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