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:
`{(-18x,+,3y,+,48z,=,63),(5x,+,y,-,6z,=,-23),(-5x,+,y,+,14z,=,17):}`
x =
y =
z =
`-4+2z`
`-3-4z`
`z`