Level:
Project ID:
2010006702
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
The augmented matrix of a system of three equations with
three unknowns is row equivalent with the following matrix
\(A'\). Find
the solution of the system.
\[
A' = \left(\begin{array}{ccc|c}
2 & 3 & 1 & 7\\
0 & 3 & 4 & 0\\
0 & 0 & 5 & 45
\end{array}\right)
\]
\([17;-12;9]\)
\([12;10;-9]\)
\([-19;12;9]\)
\([7;0;45]\)