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4 votes
PLEASE HELP!! TIMED QUESTION!!!!

Solve the system of equations below.
4x -y=16
2x + 3y = -2

A. (5,4)
B. (5,-4)
C. (4,-5)
D. (-5,4)

1 Answer

3 votes


\begin{cases}4x - y = 16 \\2x + 3y = - 2 \end{cases} \\ \Leftrightarrow \begin{cases}4x - y = 16 \\4x + 6y = - 4 \end{cases} \\ \Leftrightarrow \begin{cases}x = (y + 16)/(4) \\7y = - 20 \end{cases} \\ \Leftrightarrow \begin{cases}x = (23)/(7) \\y = - (20)/(7) \end{cases}

Maybe you wrote the system wrong somewhere because there is no right answer

User Senotrusov
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