Assume that the augmented matrix of the system of linear equations is given as \( \left[\begin{array}{rrr|r}1 & 1 & -1 & 2 \\ 3 & 2 & -1 & 3 \\ -1 & -1 & 2 & -1\end{array}\right] \) Find the solution of the above system. Choose the correct option.

Jika \( \left(\begin{array}{cc}-2 & 2 \\ 5 & y\end{array}\right)\left(\begin{array}{ll}5 & 3 \\ x & 4\end{array}\right)=\left(\begin{array}{cc}-6 & 2 \\ 27 & 19\end{array}\right) \), cari nilai \( x \) dan \( y \). If \( \left(\begin{array}{cc}-2 & 2 \\ 5 & y\end{array}\right)\left(\begin{array}{ll}5 & 3 \\ x & 4\end{array}\right)=\left(\begin{array}{cc}-6 & 2 \\ 27 & 19\end{array}\right) \), find the value of \( x \) and \( y \).

ivaret som et produkt av to pot \[ \text { b } \frac{3^{12} \cdot 12^{2}}{6^{3}} \]

1.Решить уравнение: \( \begin{array}{lll}\text { a) } \sqrt{x+3}=\sqrt{5-x} & \text { б) } \quad \sqrt{12+3 x}=2 & \text { в) } \quad x=1+\sqrt{x+11}\end{array} \)

(12) If \( 4 n \geq 9 \), what is the least possible value of \( 4 n+1 ? \)

Resuelve la desigualdad de valor absoluto: \(|x| < 3\)