Mathematics: What is the ordered pair solution for; x + 2y = 53x - y = 1

No i dont think they can kmsl...

What is the ordered pair solution for; x + 2y = 53x

Ответ:

Csmalls4412

31.12.2021

$\left\{\begin{array}{ccc}x+2y=5\\3x-y=1&/\cdot2\end{array}\right\\+\left\{\begin{array}{ccc}x+2y=5\\6x-2y=2\end{array}\right\\-----------\\. \ \ \ \ \ \ \ 7x=7\ \ \ \ /:7\\.\ \ \ \ \ \ \ x=1\\\\\left\{\begin{array}{ccc}x=1\\3x-y=1\end{array}\right\\\left\{\begin{array}{ccc}x=1\\3\cdot1-y=1\end{array}\right\\\left\{\begin{array}{ccc}x=1\\3-y=1\end{array}\right\\\left\{\begin{array}{ccc}x=1\\-y=1-3\end{array}\\\left\{\begin{array}{ccc}x=1\\-y=-2\end{array}\right\\\right$
$\left\{\begin{array}{ccc}x=1\\y=2\end{array}\right\\$

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What is the ordered pair solution for;
x + 2y = 5
3x - y = 1

Ответ:

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