2 years ago

What is the solution to the following system?

1 answer:

3 0

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

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