3 years ago

How many solutions are there to the following system of equations?

1 answer:

5 0

$4x-14y=6 \\
-2x+7y=-3 \ \ \ |\times 2 \\ \\
4x-14y=6 \\
\underline{-4x+14y=-6} \\
4x-4x-14y+14y=6-6 \\
0=0 \\ always \ true \\ \\
\boxed{\hbox{infinitely many solutions}} \Leftarrow \hbox{answer C}$

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Step-by-step explanation:

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