The following system of linear equations is a system of linear equations that x+z=4 ; x-y=1 ; 2y+z=7   a. have a single solution b. has infinitely many solutions c. have no solution d. inconsistent

Determine the values of a for which the following system of linear equations has no solutions, a unique solution, or infinitely many solutions. You can select 'always', 'never', 'a = ', or 'a #', then specify a value or comma- separated list of values. ax7+3x2+3x3 = 0 x7+3x2+6x3 = 0 3x1+9x2+8x3 = 0 No Solutions: Unique Solution: Infinitely Many Solutions: Official Time: 21:16:40 Always Always Always Always Never When a = When a # SUBMIT AND MARK SAVE AND CLOSE

Determine the values of a for which the following system of linear equations has no solutions, a unique solution, or infinitely many solutions. You can select 'always', 'never', 'a = ', or 'a #', then specify a value or comma-separated list of values. 3x7+6x2+ax3 = 3 2x1+9x2x3 = 17 2x1+7x2-3x3 = 12 No Solutions: Unique Solution: Infinitely Many Solutions: Always Always Always