Question

x+y+z=4
2x-3y+z=1
x-3y+2z=2

Answer 1

X + Y + Z = 4

X= 1 / Y = 1 / Z = 2

2(1) - 3(1) + 2

2- 3 + 2 = -1 + 2 = 2 (Cumple)

1 - 3(1) + 2(2)

1- 3 + 4

-2 + 4 = 2 ( Cumple)