Answer two questions about Systems AAA and BBB: System AAA \text{\quad}start text, end text System BBB \begin{cases}-10x-4y=0\\\
\-2x+7y=8\end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ −10x−4y=0 −2x+7y=8 \begin{cases}-10x-4y=8\\\\-2x+7y=0\end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ −10x−4y=8 −2x+7y=0 1) How can we get System BBB from System AAA?
