5. Use Gauss- of x and y. In Exercises 1-4 the given matrix represents an augmented matrix for a linear system. Write the corresponding set of linear equations for the system, and use Gaussian elimination to solve the linear system. Introduce free parameters as necessary. 4 -11 -1 -2 1. 2 03 3 12 - 0 0 0 1 6. Use Gau 3 0 4 -8 2 2 . of x an own - 3 7. Find 2. 6 -4 1 0 3 - 1 4. 1 - 2 -9 -3 6 6 2 3. - 4 3 -1 0