What is the solution to the following system? A. Infently many solutions B. no solutions C. (3, 8) D. (-3, -8)

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pumpkin1625

High School

What is the solution to the following system?
A. Infently many solutions
B. no solutions
C. (3, 8)
D. (-3, -8)

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(Based on todays review)

gmany

$\left\{\begin{array}{ccc}-2x-y=1&|\cdot(-2)\\-4x-2y=-1\end{array}\right\\\underline{+\left\{\begin{array}{ccc}4x+2y=-2\\-4x-2y=-1\end{array}\right}\ \ \ |\text{add both sides}\\.\ \ \ \ \ 0=-3\ \ \ FALSE\\\\Answer:\ B.\ no\ solutions$
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