Use the Gaussian elimination method to solve the system of linear equations. If the system has infinitely many solutions, write the solution set with z arbitrary.
9x + 20y + 2z = 16
4x + 9y + 3z = -5
x + 2y - 4z = 9
Select the correct choice below and, if necessary, fill in any answer boxes within your choice.
A. There is one solution. The solution is .
(Simplify your answers. Type integers or decimals.)
B. There are infinitely many solutions. The solutions are z)
Use the Gaussian elimination method to solve the system of linear equations. If the system has infinitely many solutions, write the solution set with z arbitrary.
9x + 20y + 2z = 16
4x + 9y + 3z = -5
x + 2y - 4z = 9
Select the correct choice below and, if necessary, fill in any answer boxes within your choice.
A. There is one solution. The solution is (Simplify your answers. Type integers or decimals.)
B. There are infinitely many solutions. The solutions are }, where z is any real number. (Simplify your answers. Type integers or decimals. Type expressions using z as the variable.)
C. The system is inconsistent. The solution set is