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)
`{(-2x-4y+5z = 7),(-4x+4y+3z = -15),(8x+4y-3z = -9):}`
`(x,y,z)=`
Enter DNE for Does Not Exist `(0,-3,-1)`