(Solved): Solve the system by finding the reduced row-echeion form of the augmented matrox. 5x ...

Solve the system by finding the reduced row-echeion form of the augmented matrox. $?\begin{array}{l}?5x_1?3x_2?29x_3=?3\\ ?x_1+x_2?x_3=?7\\ ?3x_1+2x_2?6x_3=?22\end{array}$ Fill in the blanks for the first 3 columns of the reduced row-echelon form of the augmented matrix: How many solutions are there to this system? A. None B. Exactly 1 C. Exactly 2 D. Exactly 3 E. Infinitely many F. None of the above