Find (or predict) the intersections of the following plane:

Question

B)4x+y-z=0

x-z=-12

2x+y+z=4

Please include steps and answer

Answer 1

subtracts equation 1 minus equation 3:

2x - 2z = -4

x - z = -2

x-z = -2

x-z=-12

subtracts them, there is no solution