Respuesta :

npiazza90p8qc3q
x = blue circle
y = red triangle
z = green square

1st line:

4x + y = 2z+ y
4x = 2z
x = 1/2 , z = 2

2nd line:

3x + 3y + z = x
2x + 3y + z = 0

3rd line:

2x + z = 6y