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-2y+5z = -13),(-2x+2y+z = -11),(4x+2y-4z = 16):}`
`(x,y,z)=`
Enter DNE for Does Not Exist `(2,-2,-3)`