Mathematics: Find the solution of this system of equations. separate the x- and y- values with a comma.x= -8+y-11x+9y=4

Find the solution of this system of equations. separate

Ответ:

gracedaniels68

31.12.2021

$\begin{cases}x= -8+y \\ -11x+9y=4 \end{cases}\\ \\\begin{cases}x= -8+y \\ -11 \cdot (-8+y)+9y=4 \end{cases}\\ \\\begin{cases}x= -8+y \\ 88-11y+9y =4 \end{cases}\\ \\\begin{cases}x= -8+y \\ -2y=4 -88\end{cases}\\ \\$

$\begin{cases}x= -8+y \\ -2y=-84 \ \ / :(-2)\end{cases}\\ \\\begin{cases}x= -8+y \\ y=\frac{-84}{-2} \end{cases}\\ \\\begin{cases}x= -8+42 \\ y=42 \end{cases}\\ \\\begin{cases}x= 34 \\ y=42 \end{cases}\\ \\$

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Ответ:

jakalenn2018

11.05.2021

Mathematics

The answer is the third opinion C.)Y=3^3(x-2) +5

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Find the solution of this system of equations. separate the x- and y- values with a comma.
x= -8+y
-11x+9y=4

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