Try another version of this question Solve the System. Give answer as `(x,y,z)`. Get help: Box 1: Enter your answer as an n-tuple of numbers. Example: (2,5.5172)
`{(-x-4y-3z = 3),(-2x+4y+z = -21),(4x+4y-2z = -6):}`
`(x,y,z)=`
Enter DNE for Does Not Exist `(4,-4,3)`