In: Advanced Math
Solve the system using either Gaussian elimination with back-substitution or Gauss-Jordan elimination. (If there is no solution, enter NO SOLUTION. If the system has an infinite number of solutions, express x, y, z, and w in terms of the parameters t and s.)
4x | + | 12y | − | 7z | − | 20w | = | 20 |
3x | + | 9y | − | 5z | − | 28w | = | 36 |
(x, y, z, w) = ( )
*Last person who solved this got it wrong