3 divided by 17 over 4
11/15-2/5
x^2+2x-11=0
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3x+4y=24
2x−y=3
$$\begin{bmatrix} 1 & -x & 1-x & 0 \\\\ x & 1 & x+1 & 0 \\\\ 0 & x & -x & 1 \\\\ 0 & -2x & 2x & -1 \end{bmatrix}$$
what is ...
2x+3y=12
x−y=1
