Try another version of this question Solve the system of equations. If the system has an infinite number of solutions, express them in terms of the parameter z. Get help:
`{(x,+,6y,+,10z,=,-34),(x,,,-,2z,=,-4),(-x,+,2y,+,6z,=,-6):}`
x =
y =
z =
`-4+2z`
`-5-2z`
`z`