Mathematics: 3x + y =11 and 6x + 3y = 24 solved by elimination

3x + y =11 and 6x + 3y = 24 solved by elimination

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PROMASTER

15.01.2022

Mathematics

Y=2 x=3 double check is at bottom but cut off
3x + y =11 and 6x + 3y = 24 solved by elimination

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Ответ:

ZenmasterZack

11.01.2022

Mathematics

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{we know that }
\begin{cases}
x=4\\
y = 8
\end{cases}\implies 8=k4\implies \cfrac{8}{4}=k\implies 2=k$

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3x + y =11 and 6x + 3y = 24 solved by elimination

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