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What is the value of y in the solution to this system of equations?3x + 2y = -122x + y = 4A. -36B. -12C.4D.20

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Given the following system of equations:


\begin{cases}3x+2y=-12 \\ 2x+y=4\end{cases}

We will solve the system by elimination as follows:


\begin{gathered} \begin{cases}3x+2y=-12 \\ 2x+y=4\operatorname{\rightarrow}(*-2)\end{cases} \\ ============= \\ \begin{cases}3x+2y=-12 \\ -4x-2y=-8\end{cases} \\ ============= \\ -x=-20 \\ x=20 \end{gathered}

Substitute x = 20 into the second equation to find (y):


\begin{gathered} 2(20)+y=4 \\ 40+y=4 \\ y=4-40=-36 \end{gathered}

So, the value of y = -36

The answer will be option A. -36

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