1. Solve the linear system. 2 - 313 - 314 4 201 - 612 - 503 - 504 = 5 3.1 1 - 12 - 403 - 504 = -7 2. Solve the linear system. 1 = 17 12 - 2:13 + 7:54 = 7 3. Find the reduced echelon form E of the matrix 1 = 2 3 - 19 4. Perform each matrix multiplication. 5. How many solutions does each of the following systems of linear equations have: None, unique solution, or infinitely many solutions? -3 0 0 0 0 0 0 b. 0 C. 0 3 0 0 06. Parametrizations to the system of linear equations whose matrix, in reduced row echelon form, is below. Assume that the original variables were $1, $2, 13, 24, and $5. 0 1 0 0 1 3 3 0 0 0 0 0 0