Question

(x-y):2 = (y+z):8=z:6 x+2×z=48

Answer 1

(x-y)/2 = (y+z)/8      4x-4y=y+z    4x-5y=z
(y+z)/8=z/6               6y+6z=8z      6y=2z     z=3y
x+2z=48  2z=48-x
48-x=6y
x=48-6y
4x-5y=3y    4x=8y  4(48-6y)=8y  192-24y=8y  32y=192
  y=6    z=3×6=18  x=48-6×6=48-36=12

x=12
y=6
z=18