Solve the system in terms of the arbitrary variable x.

x-2y+9z=9

2x-y+4z=7

The solution set is {(__,__,__,)}

(The answer is an expression using x as the variable.)

I attached the problem below!

Solve the system in terms of the arbitrary variable x. x - 2y + 9z = 9 2x - y + 4z =7 The solution set is (Type an expression using x as the variable.)