Systems of linear equations: System of linear equations and matrices
Row reduction of a matrix to a reduced echelon form
Determine the reduced row echelon form of the matrix \[\matrix{1 &-1 & 3 &7 \\
-1 &-15 &-19 &-23 \\
1 &3 &23 &43 \\}\] You can enter an intermediate result to check whether you're still on the right track.
-1 &-15 &-19 &-23 \\
1 &3 &23 &43 \\}\] You can enter an intermediate result to check whether you're still on the right track.
| \(\matrix{1 &-1 & 3 &7 \\ -1 &-15 &-19 &-23 \\ 1 &3 &23 &43 \\}\sim{} \) |
\Box &\Box &\Box &\Box \\
\Box &\Box &\Box &\Box}\)
Unlock full access
