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Solve the system of linear equations. Then, state whether the system is independent, dependent, or inconsistent. Match your answer to the correct answerbelow.2x+y=-38x+4y=-15Select one:O a. (2,-2), independentO b. (3,-1), independentOc. ((x,y) ly--3+2x), dependentO d. Inconsistent

User Varad
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1 Answer

15 votes
15 votes

Given:


\begin{gathered} 2x+y=-3..............(1) \\ 8x+4y=-15..............(2) \end{gathered}

To find:

The solutions

Step-by-step explanation:

Multiplying the equation (1) by 4, get


8x+4y=-12..............(3)

Subtract (3) from (2), we get


\begin{gathered} \begin{equation*} 8x+4y=-15 \end{equation*} \\ (-)8x+(-)4y=(-)-12 \\ -------- \\ 0=-3 \end{gathered}

But,


0\\e-3

Therefore, the system has no solutions.

That is,

The system is inconsistent.

Final answer: Option d.

Inconsistent.

User Adelso
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2.7k points