Question

Help? Which linear system of equations does the matrix represent?

Answer 1

\[\Large \left[\begin{matrix}-3&5\\2&3\end{matrix}\right|\left.\begin{matrix}15\\-10\end{matrix}\right]\]

Answer 2

You just insert an x in this column\[\Large \left[\begin{matrix}\color{red}{-3}&5\\\color{red}2&3\end{matrix}\right|\left.\begin{matrix}15\\-10\end{matrix}\right]\]

and a y in this column:
\[\Large \left[\begin{matrix}-3&\color{blue}5\\2&\color{blue}3\end{matrix}\right|\left.\begin{matrix}15\\-10\end{matrix}\right]\]

So that you get something that looks like this:
\[\Large \left.\begin{matrix}-3\color{red}x&+&5\color{blue}y&=&15\\2\color{red}x&+&3\color{blue}y&=&-10\end{matrix}\right.\]

Answer 3

ohhhh okay. that's not even hard

Answer 4

thank you!!

Answer 5

No it isn't.
I trust if you get another such question, you can solve it in a heartbeat? ^_^

Answer 6

definitely :p

Answer 7

@veganbee That does seem easy. Was terenzreignz right, though? Because I have a similar question on a test I need help with.

Answer 8

@katherinepierce1864 yeah it was definitely right